- "He's an amazing man. After everything he's done, he's still modest, quite self effacing actually. He even likes people to think he's not as smart as he really is. Bottom line: He's an incredibly strong leader who's given more of himself for this program than anyone has given for... well... anything I can imagine."
- ―Samantha Carter[src]
Jonathan J. O'Neill, also known as John or, most commonly, Jack, is a Lieutenant General, in the United States Air Force, who served seven years in the Stargate Program, formerly as a Colonel and also as the leader of Stargate Command's main team, SG-1.
After being released from stasis a few months after the Battle of Antarctica, O'Neill was promoted to Brigadier General and became the new Commanding officer of the SGC, replacing Lt. General George S. Hammond. O'Neill led the SGC for a year before also being replaced by Major General Henry Landry with O'Neill being promoted to Major General and reassigned to The Pentagon to become head of Homeworld Security. He reappeared again, having been promoted to the rank of Lieutenant General.
This section requires expansion
Jack O'Neill was born on October 20, 1952 in Illinois, USA and moved to Minnesota at a young age. His last name suggests that he is of Irish descent, which is confirmed when his ex father-in-law describes him as an Irishman. (SG1: "Children of the Gods", "Cold Lazarus", "Entity")
Despite that, and several references to his seemingly less than stellar intellect, he received an award for Academic Excellence upon his graduation from the Air Force Academy as a Second Lieutenant. (SG1: "Zero Hour")
His personal history is troubled. At some point, he married Sara O'Neill and together they had a son and named him Charlie. Shortly before traveling through the Stargate for the first time, Charlie was killed while playing with his pistol and, in the aftermath of this tragedy, he separated from his wife. (Stargate)
His professional life has been adventurous. He joined the United States Air Force during the Vietnam War. In the 1980s, he had a parachute accident near the border of Iran and Iraq and fractured his skull. (SG1: "Solitudes")
In 1982 when O'Neill was a Captain, He along with Charles Kawalsky participated in Operation East Fly, which was a covert mission to East Germany. The mission went bad and O'Neill's friend and Commanding officer Colonel John Michaels was killed.
- "Give my regards to King Tut, asshole!"
- ―Jack O'Neill[src]
On the first mission to Abydos, O'Neill, grieving for the accidental death of his son, Charlie O'Neill, due to him shooting himself with Jack's gun, brought a nuclear warhead, believing the mission was suicide. Ra, the Supreme System Lord of the Goa'uld Empire, discovered it and decided to send it to Earth with added Naquadah ore magnifying its destructive power by 100 times. While there, he met Skaara, who reminded him of Charlie, but still activated the bomb. While Dr. Daniel Jackson tried to save Sha're, a local woman with whom he had fallen in love, O'Neill battled Ra's First Prime, finally decapitating him with the Transportation rings. Ra, however, had altered the bomb, making it incapable of deactivation. When Ra learned that the Abydonians had rebelled, he took his mothership into orbit. O'Neill, unable to deactivate the bomb, sent it up to the ship, killing Ra, but inadvertently beginning Earth's war with the Goa'uld. (Stargate)
Commanders of SG-1
|Jonathan J. O'Neill (1997-2000) |
Robert Makepeace (2000)
Jonathan J. O'Neill (2000-2004)
Samantha Carter (2004-2005)
Cameron Mitchell (2005-Present)
After the mission to Abydos, O'Neill resigned from the United States Air Force. One year later, in 1997, Major General George S. Hammond requested that he return to Stargate Command to discuss the events during the Abydos mission, after Apophis and a group of his Jaffa arrived on Earth through the Stargate for a brief period of time, kidnapping Senior Airman Carol Weterings. Hammond, believing that Ra had survived and not yet knowing there were other Goa'uld and Stargates throughout the galaxy, ordered a nuclear warhead sent to Abydos upon O'Neill's confession that the previous weapon was not detonated on the surface of the planet, but on Ra's ship while it was in orbit and that O'Neill instead ordered the people of Abydos to bury the Stargate. Knowing that the people of Abydos were innocent, including Dr. Daniel Jackson, who remained on the planet after the events of (Stargate), he requested a team be sent to the planet, but he was denied and thrown into the Stargate Command brig. There, he met his old teammates Major Charles Kawalsky and Major Louis Ferretti. After some time, Hammond returned to the brig and talked with O'Neill about going to the Abydos. In order to contact Jackson and ensure safe passage, O'Neill took a Kleenex box and threw it through the Stargate to Abydos. He explained the action by stating that Daniel had allergies. Some time later, it was returned with the message, "Thanks. Send More".
O'Neill was recalled to active duty and resumed serving with the United States Air Force, regaining his original rank of Colonel. Hammond later authorized O'Neill, Kawalsky and Ferretti to return to Abydos, along with the Airforce scientist Captain Samantha Carter. On Abydos, O'Neill was able to reunite with Daniel Jackson, however, another attack by Apophis injured Ferretti and saw Skaara and Sha're taken. The team returned to Earth with the gate address of the planet Apophis traveled to from Abydos. Under the authorization of Hammond, O'Neill was made the leader of the team SG-1, with Carter and Jackson, and along with SG-2 under the command of Kawalsky, they were sent to the planet Apophis had retreated to. Upon meeting some local inhabitants, the teams discovered the name of the planet to be Chulak, the homeworld of Apophis. SG-1 was captured by Apophis and nearly executed until O'Neill convinced Apophis' First Prime, Teal'c, to join him. O'Neill was able to acquire a staff weapon and blast a hole in the cell, and his team, along with the prisoners, were able to escape back to Earth. (SG1: "Children of the Gods")
When Senator Robert Kinsey recommended shutting down the Stargate Program, O'Neill and SG-1 hijacked the Stargate, heading to coordinates that they had found on a previous mission. There, they learned that they were on one of two Ha'taks headed to Earth, controlled by Klorel, the son of Apophis, who had taken Skaara as a host. O'Neill was forced to kill Skaara to prevent him from killing Jackson, but Skaara was revived with a Sarcophagus. SG-1 was able to sabotage the Klorel's Ha'tak and destroy Apophis' Ha'tak in the explosion. SG-1 was hailed as heroes, and the program was allowed to remain active. (SG1: "Politics", "Within the Serpent's Grasp", "The Serpent's Lair")
While exploring P3R-272, the Ancient's Repository of knowledge was downloaded into his brain. However, Human physiology was not evolved to the point where his brain could handle that information, causing him to begin speaking Ancient and begin to die. However, his subconscious mind was able to write new addresses into the Stargate map, as well as build a generator that allowed him to gate to Othala, the Asgard homeworld. There, the Asgard erased the knowledge from his memory, told him of the Alliance of Four Great Races, and beginning the Asgard's long interest in O'Neill. (SG1: "The Fifth Race")
When O'Neill, Captain Samantha Carter, and Dr. Daniel Jackson were captured by Hathor, they were told that the others were dead, and that they were 78 years into the future. O'Neill was the first to discover the ruse, and located Carter and Daniel. Hathor then implanted a Goa'uld symbiote into O'Neill, but Sarah Raully was able to cryogenically freeze him, and Carter revived him. As Hathor attempted to kill Carter, O'Neill grabbed the Goa'uld Queen from behind, and threw her into the liquid nitrogen, killing her. This caused the System Lords to prepare to launch an attack on Earth, but Thor was able to negotiate Earth's entry into the Protected Planets Treaty, with O'Neill's help, beginning a deep respect between the two. (SG1: "Out of Mind", "Into the Fire", "Fair Game") Note: In Season 2, episode 21 (1969) O’neill is hit in the left eyebrow with the butt of a rifle, and the open wound is visible through the end of the episode. The resulting scar then appears in the next episode (Out of Mind). Then, in Season 3, episode 8 (Demons) he's hit in exactly the same spot with a wooden staff, and again the open wound is visible through the end of the episode. In the following episode (Rules of Engagement) the scar is back to its normal self, and remains for the rest of his appearances in the series.
- "I'd have rather died myself than lose Carter. Because I care about her. A lot more than I'm supposed to."
- ―Jack O'Neill[src]
While on Edora, the Stargate was buried in a meteor shower, and O'Neill was trapped on the planet for over three months. There, O'Neill became close to a local woman, Laira, but after Stargate Command was able to make contact with Edora, he returned to Earth, after Major Samantha Carter spent three months building a Particle accelerator in a plan to bring him back to the SGC. He promises Laira that he will return someday; however, this never occurs. Laira also holds her belly as he leaves, implying that she is pregnant; however, this is thought to be unlikely, considering the issue is never revisited. It is also thought that Carter comes to terms with her feelings for him during this time, given her reactions to the situation. (SG1: "A Hundred Days")
Shortly afterwards, the Asgard and the Tollans approached Stargate Command with evidence that Earth had been stealing their technology, as well as the technology of the Nox and the Tok'ra. O'Neill and Major General George S. Hammond convinced them that the SGC wasn't responsible, but the Asgard insisted that O'Neill discover who was responsible. O'Neill "stole" a Tollan weapons scanner, and "resigned" from the military. He was approached by Colonel Harold Maybourne, who offered him a chance to acquire alien technology illegally. O'Neill, however, sent word of the Rogue N.I.D. Base to the Asgard, who then retook the technology. Rather than risk being taken by the Asgard, the rogue team follows O'Neill back through the Stargate to the SGC, where they are arrested. Hammond and O'Neill then reveal the plan to the rest of SG-1, who are somewhat offended that they weren't in on it. (SG1: "Shades of Grey")
When the Replicators took control of the Biliskner, Thor was forced to beam O'Neill to the vessel, to give him warning of the threat and help him destroy the ship. O'Neill requested a large amount of ordinance and weapons, and Major Samantha Carter and Teal'c beamed aboard as well. When Thor revealed that there was no way to destroy the ship easily, Carter came up with the idea to destroy it with an uncontrolled reentry. SG-1 beamed the Stargate to the ship, and was able to gate out before impact. (SG1: "Nemesis", "Small Victories")
At the insistence of the Tok'ra Anise, O'Neill, Major Samantha Carter, and Dr. Daniel Jackson used the Atanik armbands to test their effectiveness. While they increased their natural abilities, they also affected their judgment. They hijacked the Stargate to destroy a new mothership Apophis was building, but the armbands came off halfway through the mission. However, Teal'c was able to rescue them. Later, there were concerns that O'Neill and Carter were compromised as Za'tarcs. It was only after they admitted that they had feelings for each other that they were exonerated. (SG1: "Upgrades", "Divide and Conquer")
When he and Teal'c became stuck in the effects of the time loop machine, he began looking for ways to amuse himself. Knowing there would be no consequences to his actions, he spent his time golfing through the Stargate, creating pottery, biking in the base, and learning to juggle. In one loop, he gave his resignation to Major General George S. Hammond so he could take the opportunity to kiss Major Samantha Carter. When they succeeded in stopping the loop, Dr. Daniel Jackson asked him if he had done anything crazy. He gave a long look to Sam with a really sly smile on his face, before continuing to eat his breakfast. (SG1: "Window of Opportunity").
- "This is SO the last time I help someone move."
- ―Jack O'Neill[src]
When the NID pressured Major General George S. Hammond to step down, O'Neill allied temporarily with Harold Maybourne to locate information that would allow Hammond to return. The trail took them to Senator Robert Kinsey, revealing his very close relationship with the rogue NID members. (SG1: "Chain Reaction")
With the help of robotic doubles that were created by Harlan, SG-1 killed the System Lord Cronus, and acquired his Ha'tak. Using it to plan a trap for Apophis, they dialed the Stargate to P3W-451 and the black hole absorbed some of the hydrogen from the sun around Vorash. However, an Al'kesh arrived to pick up Tanith, and Teal'c took the Death Glider they were flying in to destroy the vessel. They managed to shoot down the Al'kesh, but their Glider crashed as well. Teal'c was killed in an ambush, and O'Neill was barely saved. The jump to hyperspace caught the tail end of the supernova, which sent them and Apophis' mothership four million Light years away, to a galaxy filled with Replicators. Apophis took control of Cronus' Ha'tak, with Teal'c believing that he was once again First Prime of Apophis. SG-1 and Jacob Carter managed to destroy the Ha'tak by causing it to crash into Delmak, killing Apophis and destroying the Replicators, but Teal'c was still insistent on his loyalty. It was only with the help of Bra'tac that Teal'c's brainwashing was overcome. (SG1: "Double Jeopardy", "Exodus", "Enemies", "Threshold")
After Dr. Daniel Jackson died and ascended to save Kelowna, O'Neill retreated into himself, causing some resentment from Major Samantha Carter. He resented Jonas Quinn, and resisted his and Teal'c's attempts to allow him onto SG-1. When Anubis took Thor hostage, SG-1 agreed to help rescue him. They succeeded, but Thor was placed into a coma due to the mind probe. After Anubis tried to detonate the Stargate, and Jonas gave Carter the idea to send the gate into space with the X-302 hyperspace fighter, O'Neill performed the mission to get Carter not to do so, and allowed Jonas to join the team. After the Ha'tak that Anubis used to capture Thor appeared over Earth, O'Neill leads an away team to salvage it. When they learned that Thor's consciousness was inside the computer banks, they removed it, saving Thor but causing the vessel to self-destruct. (SG1: "Meridian", "Revelations", "Redemption, Part 1", "Redemption, Part 2", "Descent")
When researchers in Antarctica found an Ancient frozen in the ice, SG-1 and Dr. Janet Fraiser traveled down to study her. Cyla Urbanus, as the Ancient was named, was carrying a plague that infected everyone. While she healed the others, O'Neill was still sick, and Aiyana soon died afterwards. O'Neill was implanted with Kanan, a Tok'ra symbiote only because Major Samantha Carter practically begged him. After the blending, Kanan, likely influenced by O'Neill's belief in not leaving people behind, was compelled to rescue Shallan, the lo'taur of Ba'al, but the mission went wrong and Kanan left O'Neill when he was wounded attempting to escape. O'Neill was revived in a sarcophagus and repeatedly tortured to death by Ba'al. While Dr. Daniel Jackson approached him and offered him a chance to ascend, O'Neill refused, instead asking for Daniel to help him escape. It was only after Yu attacked the base that O'Neill and Shallan were able to escape, but it left O'Neill with an even deeper distrust of the Tok'ra—and a long lasting animosity toward Ba'al. (SG1: "Frozen", "Abyss")
When Kinsey was believed to have been assassinated, O'Neill was charged with the crime, but was exonerated with the help of Malcolm Barrett and SG-1. (SG1: "Smoke and Mirrors") When Harold Maybourne came to his house, claiming to have the address to a planet with Ancient weapons, O'Neill and Maybourne were transported to the planet's moon, with Maybourne attempting to locate a Furling utopia. While there, Maybourne came under the influence of a hallucinogenic plant that caused the inhabitants to go mad and kill each other. Maybourne eventually overcame the effects, and O'Neill allowed him to retire to another planet. (SG1: "Paradise Lost")
Dr. Daniel Jackson later came to Jack, asking SG-1's help when Anubis was threatening Abydos. SG-1 was able to locate the Eye of Ra, and learned of the existence of a Lost City of the Ancients, but were forced to turn it over to Anubis, who threatened to destroy Abydos. Anubis destroyed the planet anyway, and started to become the dominant System Lord. While scouting Vis Uban, they found a descended Daniel, and convinced him to return to Earth. When Jonas Quinn came up with an idea to destroy Anubis' mothership, O'Neill and Major Samantha Carter flew an X-302 hyperspace fighter through the shields, and destroyed the crystals by launching a missile into the power core. Anubis took his mothership to Langara, hoping to use Naquadria to power his superweapon. O'Neill leads a team that attempted to buy time for the System Lords to destroy the vessel. The plan worked, allowing Jonas to return to Langara a hero, and allowing Daniel to rejoin SG-1. (SG1: "Full Circle", "Fallen", "Homecoming")
Shortly afterwards, O'Neill was abducted by the Asgard scientist Loki, who believed that O'Neill was the key to solving their cloning problems. However, O'Neill, while advanced for the Tau'ri evolutionary chain, was not the solution for their cloning problems, and Thor placed a marker in his DNA to prevent manipulation. O'Neill was replaced by a clone who failed to mature at a normal rate, and SG-1 was able to capture Loki. After repairing the clone's DNA, a visibly angry Thor took Loki into his custody. (SG1: "Fragile Balance")
When Anubis created the new Kull Warriors, O'Neill leads a team to capture one for interrogation. After learning that Dr. Daniel Jackson and Dr. Bill Lee had been captured while seeking an Ancient device in Honduras, O'Neill went to rescue them. (SG1: "Evolution, Part 1", "Evolution, Part 2")
- "I wish I could say I didn't owe anything to anyone. But the truth is, I wouldn't be standing here if it wasn't for the courage and support of each and every one of you. I hope I can be as good a leader as we've had in the past and as good as you deserve."
- ―Jack O'Neill[src]
After locating another Ancient Repository of knowledge, O'Neill had the knowledge downloaded into his brain, in the hopes of finding the Lost City of the Ancients. After returning to Earth, however, SG-1 learned that newly inaugurated President Henry Hayes had relieved Major General George S. Hammond and replaced him with Dr. Elizabeth Weir. As O'Neill's condition began to deteriorate, SG-1 persuaded Weir to let them go by Tel'tak to Praclarush. Arriving at the planet's outpost, O'Neill activated an Ancient star map, showed a picture of Earth, and said two words: Terra Atlantus. The Lost City of the Ancients was the Lost City of Atlantis, and it was on Earth. He also took the Zero Point Module powering the outpost, and traveled to Antarctica, bypassing a fleet Anubis had brought to conquer Earth. During the Battle of Antarctica, O'Neill used the Control chair in the Antarctic outpost to activate thousands of Drone weapons, which destroyed Anubis' fleet. However, SG-1 was forced to place O'Neill in a stasis pod to prevent the Ancient knowledge from overwhelming him. (SG1: "Lost City, Part 1", "Lost City, Part 2")
Before he erased the knowledge, Thor interfaced O'Neill's mind with the computer of the Daniel Jackson, and asked him to build a weapon to fight the Replicators. O'Neill constructed a disruptor to sever the Replicator blocks and render them inert, allowing SG-1 to rescue a captured Major Samantha Carter and save Orilla.
Commanders of Stargate Command
Back on Earth, O'Neill was promoted to Brigadier General and made commander of Stargate Command which resulted in him stepping down from his role as leader of SG-1. Despite that, Jack's first act as the SGC's commander was to promote Carter to Lt. Colonel and also make her commanding officer of SG-1. (SG1: "New Order, Part 1", "New Order, Part 2")
While traveling to the Antarctic outpost, O'Neill was nearly killed when Dr. Carson Beckett launched a Drone weapon, only being saved by the flying of Major John Sheppard. At the outpost, Dr. Daniel Jackson, Dr. Elizabeth Weir, and Dr. Rodney McKay persuaded O'Neill to authorize an expedition to travel to Atlantis, in the Pegasus galaxy. Despite Weir's insistence that Sheppard, who possessed the Ancient Technology Activation gene be included, O'Neill was hesitant, citing Sheppard's record, to which Weir pointed out O'Neill's record. O'Neill tried to convince Sheppard, saying that people who don't want to go through the Stargate were "whacked". Back at Stargate Command, he denied Daniel's request to join the expedition and wished the expedition bon voyage on a card attached to a bottle of champagne he sent through the gate. (SGA: "Rising")
- "God I miss going off-world!"
- ―Jack O'Neill[src]
After sending SG-1 to warn Harold Maybourne of the impending approach of Ares, they discovered an Ancient vessel designed to travel in time. As O'Neill was the only one who could fly the vessel, he went off-world to activate it. He was able to destroy Ares' Ha'tak during a battle, killing Ares and saving the people of the planet. The entire experience was rather nostalgic for O'Neill, who commented that he "missed going off world". When the adventure was over, he even said a friendly goodbye to his old rival Maybourne. (SG1: "It's Good to Be King")
When the Replicators began an invasion of the Milky Way, O'Neill coordinated with the Rebel Jaffa, the Tok'ra, and the Asgard to mount a defense of the galaxy. He refused to help Ba'al, however, to give the Rebel Jaffa a chance to take Dakara. When the Replicators breached the iris, O'Neill led the defense of Cheyenne Mountain, trying to stall long enough to allow Lt. General George S. Hammond to destroy the mountain. However, Lt. Colonel Samantha Carter and Jacob Carter were able to use the Dakara superweapon to destroy the Replicators in the galaxy, which also had the effect of inciting the rest of the Jaffa to rebel and bringing about the fall of the Goa'uld Empire. (SG1: "Reckoning, Part 1", "Reckoning, Part 2", "Threads")
When Dr. Daniel Jackson discovered that Ra possessed a Zero Point Module, they used the Time Jumper to travel back to 3,000 BC to steal it. However, the Jumper was discovered by Ra's Jaffa. SG-1 left a message to warn the future, and attempted to cause a rebellion. However, O'Neill, Lt. Colonel Samantha Carter, and Teal'c were executed, and Ra took the Stargate when he left Earth. An alternate O'Neill, Carter, and Teal'c located Daniel, ensured the Stargate was buried, and preserved the timeline (with the only noticeable exception being that the pond O'Neill fished in now had fish). (SG1: "Moebius, Part 1", "Moebius, Part 2")
Following the collapse of the Goa'uld Empire, SG-1 disbanded itself. O'Neill was promoted to Major General and made commander of Homeworld Security (currently know as Homeworld Command), at The Pentagon, being succeeded by Major General Henry Landry as the commander of Stargate Command. Lt. Colonel Cameron Mitchell was able to reunite SG-1, however. After alerting the Ori to the presence of Humans in the Milky Way, Dr. Daniel Jackson admitted to O'Neill that he was actually scared but O'Neill reminded him that they had faced some serious threats before and come out of them out alive. (SG1: "Avalon, Part 1", "Avalon, Part 2", "Origin")
- "To be honest, I wouldn't mind one last jaunt through the old orifice."
- ―Jack O'Neill[src]
General O'Neill asked SG-1 to help Martin Lloyd in making a movie of Wormhole X-Treme!, to insure plausible deniability in case word of the Program was leaked. O'Neill also accompanied SG-1 through Mitchell's 200th trip through the Stargate, having a desire to go through it at least one more time. He convinced Landry to join them. (SG1: "200")
While testing the McKay/Carter Intergalactic Gate Bridge that Lt. Colonel Samantha Carter and Dr. Rodney McKay developed to accelerate travel between Earth and Pegasus, the Daedalus encountered live Ancients who reclaimed Atlantis. O'Neill and Richard Woolsey were sent as liaisons, as the Ancients had asked the Atlantis expedition to leave. Soon, however, the Asurans launched an attack on Atlantis, taking the Ancients by surprise.
Though O'Neill had ordered Major General Henry Landry to have Daedalus destroy Atlantis should the Ancients lose control of the city, Lt. Colonel John Sheppard, Dr. Elizabeth Weir, Dr. Carson Beckett, and McKay hijacked a Puddle Jumper to try to rescue O'Neill, Woolsey, and Atlantis. O'Neill, meanwhile, had to manually drain the water from an underwater Jumper bay to rescue them, resulting in Woolsey and himself being captured. The Replicators mind-probed him, but O'Neill actually managed to resist it due to his previous experiences, surprising the Replicators. When McKay told them his fake plan, O'Neill guessed the truth due to his years with Lt. Colonel Samantha Carter but didn't let on, his ability to resist the mind-probe protecting this from the Replicators as well.
Eventually, Sheppard, Weir, McKay, Beckett, Teyla Emmagan, and Ronon Dex were able to rig the shields to release a Replicator disruptor wave, destroying the Asurans in one fell swoop. When the team contacted the Daedalus and Colonel Steven Caldwell was unsure of them, O'Neill sarcastically addressed him, trying to convince him of the truth. O'Neill's presence and the team's insistence ultimately caused Caldwell to stand down and send a team of Marines to check out their story. On his return to Earth, O'Neill recommended that Weir be placed back in command. (SGA: "The Return, Part 1", "The Return, Part 2")
- "Yeah. I think that went well."
- ―Jack O'Neill[src]
Jack was called in when Dr. Daniel Jackson was found to be a Prior. After a heated debate, he was convinced to allow SG-1 to capture an Ori warship carrying the incomplete Sangraal, hoping to send it to the Alteran Home Galaxy and neutralize the Ori. After sending Teal'c to interrogate Daniel, O'Neill finally believed his story. Daniel, however, commandeered the Odyssey and used Jack to fly him to the Supergate, as part of his plan. He needed someone to be able to work the Odyssey's controls once he left the ship and someone with authority to give an order so he chose O'Neill, the one person left he trusted. O'Neill was reluctant to trust Daniel due to the kidnapping, but exchanged banter with him.
O'Neill gave the order to the Daedalus in the Pegasus Galaxy to destroy the Stargate linked to the Supergate, allowing Daniel to dial the Supergate and send the weapon through after a moment's hesitation, apparently deciding to trust Daniel. Though they sent the Sangraal, another eight Ori warships entered the Milky Way. Before the ship could travel through the Supergate, O'Neill, at Lt. Colonel Samantha Carter's request, beamed SG-1 back aboard the Odyssey seconds before the Ori ship made the trip. Not knowing it actually worked, he witnessed the Supergate activating, sending an addition six Ori ships to the Milky Way, making the total up to eight.(SG1: "The Shroud")
- "Never in the history of boredom has anyone been more bored than I am right now."
- ―Jack O'Neill[src]
After capturing the final Ba'al clone, O'Neill attended the Extraction Ceremony on the Tok'ra homeworld with SG-1. The ceremony went through and the final Ba'al clone was killed and Vala Mal Doran stayed behind to help Ba'al's host cope with the extraction because she knew what he was going through as a former host herself. O'Neill took the rest of the team to lunch after their return to Earth. (Stargate: Continuum)
- "Second guessing a decision is a waste of time."
- ―Jack O'Neill[src]
Sometime before or after the Wraith attack on Earth, Jack O'Neill was promoted to Lt. General.
Shortly after Atlantis had landed on Earth O'Neill took command from Woolsey, shortly after deliberations by the IOA to send Atlantis had been stalled and after Richard Woolsey had failed to convince the president that Atlantis should be allowed to return to Pegasus. His claim for seizing Atlantis from the IOA was that so long as the city was with in the waters of the United States, he, in his position as head of HomeWorld Security was allowed to claim it as property of the USA Air Force. Woolsey, when questioned by Teyla admitted that he did not know if Jack O'Neill had the authority to do this. His action placed him at odds with many of the original Expedition members, such as Lt. Colonel John Sheppard and Teyla. The former of whom was ready to resign from the Air Force. O'Neill's actions proved to be a ploy to allow Radek Zelenka and his team time to make repairs to the city so that it could return to that was necessary for the city-ship to make the return to Pegasus. O'Neill made further preparations for their departure by bringing food, weapons and medicine aboard Atlantis. Teyla wondered why he was doing this as Atlantis was right off the coast of San Francisco. Woolsey claimed that he, Jack was taking these actions simply because he was a paranoid man. (SGA: "Legacy: Homecoming")
When he found out that Atlantis had a weapon capable of destroying the Wraith, O'Neill came to the city himself to discuss what to do with it. Carter eventually tells him that she chose to inform him of the weapon as he was "the man who wouldn't blow up Abydos." He orders the weapon destroyed and is heavily implied to be in a relationship with Carter. (SGA: "Legacy: Secrets")
After Guide arrives in the city, O'Neill negotiates for his help in fighting Queen Death's coming attack, but Guide demands the weapon's destruction in return. During the Second Battle over the Outer Rim Planet, O'Neill stays on Atlantis to personally command the defense of the city. O'Neill remains in charge during the battle, directing the forces at his disposal, both allied and from Atlantis. When Sheppard disappears, O'Neill takes the Control Chair and flies Atlantis briefly despite the city's reluctance as he's not Sheppard. He also uses a heads-up display rather than the city interface. Once Sheppard is found and awoken by Vala, Sheppard resumed flying the city and O'Neill returns to coordinating its defense. When an explosive-laden cruiser is sent at the city, O'Neill allows Teyla and Radek Zelenka to hijack the ship and stop the bombs while getting Farseer to send Ember to help. The combined efforts of the defending force succeed and Atlantis is saved while Queen Death is killed by Teyla. After the battle, he attempts to relax by fishing with Carter but his fishing pole is stolen by one of the planet's squids. Instead, O'Neill decides to enjoy the view from Atlantis. (SGA: "Inheritors")
O'Neill, along with Dr. Nicholas Rush, recruited Eli Wallace into the Stargate Program. He later had a conversation with Colonel Samantha Carter regarding the events of the attack on Icarus after the planet was destroyed. It wasn't until Rush, in Dr. Bill Lee's body, briefed him on the situation that he learned the Icarus personnel had gone through the Stargate to the Destiny. (SGU: "Air, Part 1", "Air, Part 2")
Later, Colonel Everett Young, while in the body of Colonel David Telford, briefed O'Neill a second time of the current situation and O'Neill, after putting Young in charge of the ship, offered some words of encouragement. (SGU: "Air, Part 3")
O'Neill (along with Dr. Daniel Jackson) helped Colonel Young out with trying to find out if Telford was a Lucian Alliance spy. When it was later found out that Telford was the spy, O'Neill made his first trip to the Destiny using the Long-range communication device to help Young with the interrogation. He swapped bodies with Cpl. Marsden. (SGU: "Subversion")
O'Neill gave Colonel Samantha Carter the order to attack the Lucian Alliance outpost. After the attack failed, he gave Young a dressing down for failing to vent the atmosphere of the Destiny Gate room when the Lucian Alliance gated to the Destiny. He also told Young that if he wasn't up to it he would be replaced by someone who would get the job done. (SGU: "Incursion, Part 1")
- In an alternate reality, Jack O'Neill was a Brigadier General and the commanding officer of the SGA in 1998. As was the case with his counterpart in our reality, he was part of the original team which traveled through the Stargate to Abydos in 1996 with the intention of detonating a nuclear weapon. At the time, he was willing to commit suicide as his son Charlie had recently died after accidentally shooting himself with Jack's personal gun. When the Goa'uld invaded Earth and he discovered the location of Chulak from the Dr. Daniel Jackson of our reality, he sent a nuclear weapon through the Stargate to attempt to halt the attack. He did not believe the Jaffa were worth salvaging a relationship with. This led to his death when he tried to turn Teal'c from his service to Apophis using footage of his counterpart from our reality provided by Daniel. Unfortunately, this resulted in Jack dying with Teal'c personally killing Jack in revenge for Jack sending the bomb to Chulak that had killed Teal'c's wife and young son. The Jack O'Neill from this reality was colder and more militaristic than his counterpart in our reality, purely due to the fact that he had never met Daniel with Daniel helping Jack to mellow and ultimately grow into a better person. He was engaged to Dr. Samantha Carter at the time of his death, indicating that he and Sara O'Neill had divorced by then. It should also be noted that he had a permanent scar on his left eyebrow which the main timeline O'Neill would receive in the Season 3 episode, "Demons". (SG1: "There But for the Grace of God")
- In another alternate reality, Jack O'Neill had been married to Dr. Samantha Carter for a year by 1999. He died in the Goa'uld invasion of Earth, having been killed by Teal'c, the First Prime of Apophis, in front of his master as well as Sam. His death had a huge emotional impact on his wife. It seems that he was very similar to his counterpart in our reality. It appears that he also frequently used the phrase "for crying out loud" and would not "have a clue" what to tell a woman in the middle of an emotional crisis. The Jack of our reality asked her how she could marry "such a loser." Major Charles Kawalsky considered Jack his best friend. Consequently, he reacted angrily upon seeing the Teal'c of our reality at Stargate Command, though he eventually came to trust him. (SG1: "Point of View")
- In another alternate reality, Jack O'Neill was still in command of Stargate Command in 2006 while the version of SG-1 under his command consisted of Daniel Jackson, Cameron Mitchell, Janet Fraiser and Martouf/Lantash. His world was in the process of being attacked by the Prior virus at the time that his SG-1 was accidentally sent to our reality. (SG1: "Ripple Effect")
- In another alternate reality visited by Lt. Colonel Samantha Carter in 2007 in which Anubis' attack forced the Stargate Program into the public eye, Jack O'Neill's fate was never made clear, although it is possible that he was never removed from the Ancient stasis pod in the Antarctic outpost. (SG1: "The Road Not Taken")
- In an alternate timeline, Colonel Jack O'Neill was retired and living in his cabin in 2010. He was visited by Samantha Carter when she and Doctor Janet Fraiser discovered the Aschen had sterilized most of the Earth's population. They, Doctor Daniel Jackson and Teal'c developed a plan to prevent this from happening, but they wanted O'Neill's help. At first, he was reluctant, but later joined them. When the plan was put into action, he was the first one to attempt to get a note through the Stargate. He was killed by the automated defense system before reaching it. (SG1: "2010")
- In a possible future, the Aschens' attempt to get revenge against the Tau'ri resulted in the creation of a pathogen that destroyed virtually all life on Earth and spread throughout the Stargate network; by 2033, Commander Jack O'Neill was the last living member of Stargate Command, and had a daughter, Jade O'Neill (Her mother was not identified). With the aid of a Reetou ally and Ancient teleportation pods, Commander O'Neill and Jade travelled back in time to prevent the alliance that led to the Aschen Pathogen contaminating Earth, resulting in him meeting his younger self and Daniel. The two O'Neills initially argued about their methods- Commander O'Neill having resorted to the 'whatever-it-takes' approach that Jack had abandoned over his years in the SGC, willing to bomb the treaty negotiations and kill even Tealc and Carter just to save Earth- but reconciled in time to destroy the Aschen ship from the inside before escaping using an Ancient teleportation pod. Commander O'Neill and Jade later returned to the future, accepting whatever would happen to them in favor of a superior future (SG1: "Relativity")
This section requires expansion
- In an alternate timeline created by SG-1 traveling back in time to retrieve a ZPM, Daniel was the only survivor of a failed rebellion that killed the rest of the team. (SG1: "Moebius, Part 1", "Moebius, Part 2")
- In an alternate timeline accidentally created by SG-1 in which the Stargate Program never existed, Colonel Jack O'Neill was retired and owned his own boat called Homer. In 2005, he went to Chulak with Doctors Daniel Jackson and Samantha Carter to recruit Teal'c. They traveled back to ancient Egypt to fix the timeline. As he and Sam worked alone in the Puddle Jumper, Jack told her that he found her attractive, but she replied that she liked Daniel, whom Jack thought might have been gay. A short while later, however, when thinking they were going to be killed, she kissed him, saying that she had lied and that she had only wanted to take her time to get to know him better. He then cut off her rambling explanation by kissing her again. When Daniel told them over the radio that it was safe to come outside, Jack replied that they would be a bit longer; they then kissed again, sparks flew from the broken machine in the background, and Sam remarked that she could "fix that.". (SG1: "Moebius, Part 1", "Moebius, Part 2") He and Sam later began a relationship and had a daughter named Eleanor O'Neill, who was named after Sam's late mother Eleanor Carter. At this point, O'Neill had become a general in Hor-Aha's army and led a mission to Abydos to steal a new symbiote for Teal'c. However, this drew the wrath of Ra who returned to reclaim Earth. With the help of the original SG-1, O'Neill and his version of the team combated Ra and forced him from the planet. O'Neill, Carter and Daniel chose to remain in the past while Teal'c went with Egeria to help establish the Tok'ra. (SG1: "Moebius Squared")
- In the alternate timeline created by Ba'al in which the Stargate Program also never existed, Jack O'Neill was a Colonel in the United States Air Force and Charlie O'Neill was still alive in 2008. Prior to history being altered, Jack was killed by the original Ba'al as he attempted to escape back to Earth. Because of SG-1 passing through a wormhole on their way to Earth, they were unaffected by the changes in the timeline and were able to restore the correct course of the timeline, leading to Jack not being killed by Ba'al's clone and continuing on with the Extraction Ceremony. (Stargate: Continuum)
O'Neill has a very dry sense of humor (which he acquired after his mission to Abydos, before that he was a quiet and serious man) and is impatient with complicated explanations. However, in a conversation with Lt. Colonel Samantha Carter, he explains that he is worried about her because she has not tried to baffle him with scientific babble for a few days. When he is asked a scientific question he doesn't know the answer to, he often jokingly answers with "magnets," or some variation of the term. As stated by Cassandra Fraiser, O'Neill pretends he's not as smart as he really is. (SG1: "Window of Opportunity", "Point of No Return", "Rite of Passage", "Affinity").
O'Neill appears to not prefer strict formality, reflected in his choice of duty uniform. After his promotion to Brigadier General and commander of Stargate Command, O'Neill continued to wear Battle Dress Uniform as his regular uniform even though his duties largely consists of paperwork, simply updated with the appropriate rank insignia. He only wears Service Dress Uniform at occasions where a civilian would wear a suit, or when he's representing the United States Air Force. Even as head of Homeworld Command at The Pentagon, O'Neill has stuck with combat fatigues. (SG1: "Lockdown") (SGU: "Air, Part 1")
O'Neill has a tendency to not lock his house when leaving, which has caused some unwanted visits. Jack O'Neill also naturally possesses the Ancient Technology Activation gene. His service number is 69-4-141. O'Neill loves cake, often referencing it when formal situations or events arise with the phrase "I hope there's cake". He goes out of his way on several occasions to make sure cake is being served to celebrate a particular event. His favorite color is peridot. If he could have dinner with one person in the world it would be Mary Steenburgen. He used to be a cigarette smoker but quit during the mission to Abydos. His favorite television show is The Simpsons. In his free time, O'Neill enjoys fishing in the lake next to his cabin in Minnesota. After several failed attempts to get Carter to come with him, he finally succeeded shortly after the fall of the Goa'uld Empire. He also enjoys boxing, chess, golf and ping pong. (Stargate, SG1: "The Fifth Race", "Nemesis", "Small Victories", "Window of Opportunity", "The Curse", "Rite of Passage", "Frozen", "Heroes, Part 1", "Lost City, Part 1", "Sacrifices", "Full Alert", "Citizen Joe", "Threads", "Moebius, Part 2", "Avalon, Part 1")
The Asgard showed great fondness toward him, and likewise O'Neill showed great fondness towards the Asgard and in particular to Thor. Loki even stated that: "O'Neill is legendary" hinting at the Asgard's view of him. To them, he led his people through the galaxy and proved to them that the Tau'ri were well on their way to be the "Fifth Race". He also downloaded, twice, the knowledge of the Ancients and through this created the Replicator disruptor which saved their planet. They also named a new class of warship after him. When Earth was accused of stealing over Asgard, Nox and the Tollan's technology, the Asgard chose him alone to prove his people weren't the culprits. (SG1: "Fair Game", "Shades of Grey", "The Fifth Race", "Lost City, Part 1", "Lost City, Part 2", "New Order, Part 1", "New Order, Part 2")
Powers and abilities
- Healing power: To be added
This section requires expansion
- H&K MP5A3 submachine gun: The primary weapon of most SG team members, O'Neill utilized the MP5 on the majority of his missions until 2000. (Stargate); (SG1: "Children of the Gods", "The Enemy Within", "Emancipation", "The Broca Divide", "The First Commandment", "Cold Lazarus", "The Nox", "Brief Candle", "Thor's Hammer", "The Torment of Tantalus", "Fire and Water", "Hathor", "Singularity", "Cor-ai", "Enigma", "There But for the Grace of God", "Within the Serpent's Grasp", "In the Line of Duty", "Prisoners", "The Gamekeeper", "Need", "Thor's Chariot", "Message in a Bottle", "Secrets")
- FN P90 Personal Defense Weapon: The primary weapon of most SG and Atlantis team members, O'Neill switched to the P90 during the Skirmish with Chaka due to it's increased stopping power and utilized it on the majority of his missions afterwards. (SG1: "The First Ones", "Scorched Earth", "Beneath the Surface", "Point of No Return", "Chain Reaction", "The Serpent's Venom", "Absolute Power", "The Light", "Prodigy", "Entity", "Double Jeopardy", "Exodus", "Enemies", "Threshold", "Ascension", "The First Ones", "Red Sky", "Rite of Passage", "Beast of Burden", "The Tomb", "2001", "48 Hours", "Summit", "Last Stand"); (SGA: "The Return, Part 2")
- Colt M16A3 rifle: O'Neill utilized the M16 rifle when he was a member of John Michaels' team in 1982. (SG1: "The Gamekeeper")
- M2 Browning: During the rescue of the Abydonians after they had been captured by Amounet, O'Neill utilized the M2 Browning to take out some of her Jaffa. (SG1: "Forever in a Day")
- SPAS-12 semiautomatic shotgun: O'Neill used a SPAS-12 shotgun during the Skirmish aboard the Biliskner (SG1: "Nemesis")
- USAS-12 automatic shotgun: 'O'Neill used a USAS-12 during skirmishes against the replicators (SG1: "Nemesis", "Small Victories", "Menace")
- M249 Squad Automatic Weapon: To be added
- Cobray CM79LF 37mm launcher: To be added
- HK SL8 sniper rifle: To be added
- M60 machine gun: To be added
- Armsel Striker: To be added
- M9 pistol: The primary sidearm of most SG and Atlantis team members, O'Neill utilized the M9 for the majority of his missions. (SG1: "Children of the Gods")
- SIG P226: To be added
- Walther P99: To be added
- Staff weapon: On several missions, including the Abydos Mission and the Chulak mission, O'Neill acquired and utilized a Goa'uld staff weapon. (Stargate); (SG1: "Children of the Gods", "Cor-ai")
- Zat'nik'tel: Utilized on missions where non-lethal weapons is the priority or when rendered unarmed expect O'Neill to use a Zat over a Staff Weapon. ((SG1: "Within the Serpent's Grasp", "The Serpent's Lair", "Family", "Deadman Switch", "Rules of Engagement", "Foothold", "New Ground", "2010", "Prodigy", "Entity", "Rite of Passage", "48 Hours", "Revelations", "Abyss", "The Other Guys", "Prometheus", "Prophecy", "Lockdown")
- Combat knife: Rarely used throughout most of the show's length O'Neill notably used the combat knife in order to disable the Hand Device of Heru'ur. (SG1: "Family", "Allegiance")
- C-4: Utilized when heavy explosives are needed O'Neill notably utilized several blocks of C4 while on P7S-441. (SG1: "Within the Serpent's Grasp", "The Serpent's Lair", "Upgrades", "The Fifth Man", "Descent", "Lost City, Part 1", "Reckoning, Part 2")
- Fragmentation grenade: O'Neill would rarely used grenades while off-world. (SG1: "The Serpent's Lair", "Thor's Chariot", "The Fifth Man")
- A-M18A1 Claymore mine: O'Neill would utilize Claymores on rare occasions while off-world. (SG1: "Children of the Gods", "Thor's Chariot", "The Fifth Man")
- Tok'Kal: To be added
- Transphase Eradication Rod: O'Neill would use this weapon while dealing with invisible threats such as the Reetou. (SG1: "Show and Tell")
- Kull disruptor: To be added
- Drone weapon: To be added
- Replicator disruptor: Created while he held the Repository of Ancient Knowledge in his mind, O'Neill would quickly utilize the weapon upon his recovery on the Human Replicator known as the Eighth. He would soon utilize the weapon shortly afterwards in the rescue of Samantha Carter. ((SG1: "New Order, Part 2")
- Tranquilizer gun: O'Neill used tranquilizer gun to knock out SGC personnel while under Hathor's control, to attempt to knock out a Kull warrior and to subdue Osiris. (SG1: "Hathor (episode)", "Evolution, Part 1", "Chimera")
- Blowgun: O'Neill would use a blowgun to subdue a native of Avnil. (SG1: "The First Commandment")
- Bow: After being stripped of his weapons by the Nox, O'Neill created a bow to defend himself. (SG1: "The Nox")
- Intar: O'Neill would use the Intar when dealing SG-X off world and when training Cadets for the Stargate Program. (SG1: "Rules of Engagement", "Proving Ground")
- Firearm (People of P3R-118): After regaining his memories on P3R-118, O'Neill would disarm one of the Security guards and would hold him and Administrator Calder at gun point. (SG1: "Beneath the Surface")
- Battle Dress Uniform: O'Neill would wear BDUs while on duty and on military bases. (SG1: "The Enemy Within")
- Blue Battle Dress uniform" O'Neill would switch between Blue and Green BDUs while stationed at Stargate Command. ((Family: "Bane", "The Tok'ra, Part 1", "Touchstone", "Serpent's Song", "Holiday", "One False Step", "Seth", "Fair Game", "Learning Curve", "Forever in a Day", "Past and Present", "Jolinar's Memories", "The Devil You Know", "Pretense", "Urgo", "New Ground", "Crystal Skull")
- Black Battle Dress uniform: O'Neill would wear a black version of his BDUs while on mission that called for it. During his time at Homeworld Command, O'Neill would wear Black BDUs. (SG1: "Within the Serpent's Grasp", "The Serpent's Lair", "Small Victories", "Watergate", "Beneath the Surface", "Prometheus", "Unnatural Selection", "200"); (SGU: "Air, Part 1", "Air, Part 2", "Air, Part 3", "Earth", "Subversion", "Incursion, Part 1")
- Desert Camouflage Uniform: O'Neill would wear Desert Camouflage when the mission called for the desert uniform. (SG1: "Children of the Gods", "Fire and Water", "Serpent's Song", "Window of Opportunity", "Absolute Power", "Exodus", "Enemies", "The Tomb", "The Other Guys", "Sight Unseen", "Full Circle", "Moebius, Part 1", "Stargate Continuum")
- Service Dress Uniform: O'Neill would wear his dress uniform during briefings, funerals, promotion ceremonies or diplomatic functions. After being made head of Homeworld Command, O'Neill would wear his uniform more often. (SG1: "Children of the Gods", "The Broca Divide", "The Nox", "Fire and Water", "Enigma", "Politics", "Secrets", "Fair Game", "Shades of Grey", "Between Two Fires", "2001", "Wormhole X-Treme!", "The Other Guys", "Smoke and Mirrors", "New Order, Part 2", "Zero Hour", "Citizen Joe", "Avalon, Part 1", "Origin", "200"); (SGA: "The Real World", "The Return, Part 1"); (SGU: "Air, Part 1")
- Flight suit: O'Neill would wear a flight suit when flying various types of aircraft. (SG1: "Tangent", "Redemption, Part 1", "Redemption, Part 2", "Fallen", "Origin"); (SGA: "Rising")
- Tactical vest: While off-world, O'Neill wore a tactical vest. (Stargate); (SG1: "Children of the Gods", "The Enemy Within", "Emancipation", "The Broca Divide", "The First Commandment", "Cold Lazarus", "The Nox", "Brief Candle", "Thor's Hammer", "The Torment of Tantalus", "Fire and Water", "Singularity", "Cor-ai", "Enigma", "Solitudes", "Tin Man", "There But for the Grace of God", "Within the Serpent's Grasp", "The Serpent's Lair", "In the Line of Duty", "Prisoners", "The Gamekeeper", "Need", "Thor's Chariot")
- Mission Oriented Protective Posture: To be added
- Hazmat suit: O'Neill wore hazmat suits when it was necessary. ((SG1: "Singularity", "Revisions")
- Space suit: To be added
- Jaffa armor: To be added
- Jaffa helmet: To be added
- Parka: To be added
- Radio: To be added
- Sunglasses: To be added
- Suppressor: O'Neill, along with Teal'c, would use a suppressor to take out several of Heru'ur's Horus Guards during Heru'ur's attack on Cimmeria. (SG1: "Thor's Chariot")
- Binoculars: To be added
- Monocular: To be added
- Periscope: To be added
- Night vision goggles: To be added
- Flashlight: To be added
- Gas mask: To be added
- Aris Boch's goggles: To be added
- Flare: To be added
- Atanik armband: To be added
- Parachute: To be added
- Phase device: To be added
- Scope: To be added
- Long-range communication stone: To be added
- Jonathan J. O'Neill's truck: O'Neill would drive a Ford Pick Up Truck during his time in Colorado Springs. He would later sell the car when he moved to Washington, D.C. to head Homeworld Command. (SG1: "Chain Reaction", "Ascension", "Desperate Measures", "48 Hours", "Sight Unseen", "Fragile Balance", "Lost City, Part 1", "Full Alert", "Citizen Joe", "Threads", "Avalon, Part 1", "200")
- Remote Flyer: To be added
- X-301 Interceptor: O'Neill, along with Teal'c, would test fly the X-301 until a recall device installed by Apophis on his death gilders activated and veered the X-301 off course. (SG1: "Tangent")
- Selmak's Tel'tak: O'Neill would temporarily pilot a Tel'tak during the Battle of the Tobin system. (SG1: "The Serpent's Venom")
- Cronus' Ha'tak: To be added
- X-302 hyperspace fighter: O'Neill would fly both missions involving the X-302 before it went into the production. (SG1: "Redemption, Part 1", "Redemption, Part 2")
- Death Glider: After taking second seat on various missions involving a death gilder, O'Neill would pilot a Death Gilder from Anubis' mothership when it crashed into the Pacific ocean. (SG1: "The Serpent's Lair", "Exodus", "Descent")
- Snowmobile: To be added
- Prometheus: To be added
- F-302 fighter-interceptor: O'Neill would fly the F-302 during the Battle to destroy Anubis' mothership above Vis Uban. He would later fly second seat with Cameron Mitchell after O'Neill was promoted and Mitchell took command of SG-1.(SG1: "Fallen", "Origin")
- Ronan's Tel'tak: To be added
- Time Jumper: O'Neill, along with two alternate versions of himself, would pilot the Time Jumper on various missions. (SG1: "It's Good to Be King", "Moebius, Part 1", "Moebius, Part 2")
- Homer: To be added
- Sara O'Neill: At some point, he married a woman named Sara and together they had a son and named him Charlie. Shortly before traveling through the Stargate for the first time, Charlie was killed while playing with his pistol and, in the aftermath of this tragedy, he was divorced from Sara O'Neill. (Stargate, SG1: "Cold Lazarus")
- Kynthia: During the mission to Argos, O'Neill would have a brief relationship with the Argosian Kynthia who drugged him with Marriage cake. Their relationship would cause O'Neill to be infected with Nanites and be artifically aged until Stargate Command was able to reverse the process. (SG1: "Brief Candle")
- Laira: While trapped on Edora for three months, O'Neill would engage in a relationship with Laira, a native Edoran. (SG1: "A Hundred Days")
- Kerry Johnson: He had a relationship with CIA Agent Kerry Johnson, but she felt there was something deeper between him and Lt. Colonel Samantha Carter. Kerry told him to retire but he didn't take her advice. She goes on saying they were making big error if they let military rules stop their feelings. (SG1: "Threads")
- Samantha Carter: He has feelings for Colonel Samantha Carter that seem to be reciprocal; they were once both forced to admit it to avoid being labeled as Za'tarcs. Because this kind of relationship is forbidden in the United States Air Force, he has never pursued a relationship with her, keeping well within the rank border. He even encouraged her during her engagement to Pete Shanahan. When he and Teal'c were stuck in the effects of the Time loop machine and had the opportunity to do whatever they wanted with no fear of the consequences, one of the things he did was to give his resignation to Major General George S. Hammond. When Carter asked him why, he replied, "So I can do this." Then he pulls her into a long kiss, which she evidently reciprocated. Jacob Carter has hinted at knowing their feelings, as have Teal'c, Hammond and Dr. Janet Fraiser. When a wedding was proposed by Vala Mal Doran in her search for an ending scenario for a Wormhole X-Treme! movie, neither of them answered. Carter is later mentioned to be in a serious relationship and its heavily implied to be with O'Neill with her sending him letters when she believed herself to not be returning from Atlantis and the two flirting as they discussed the city's VIP quarters. A framed picture of O'Neill could also be seen in the personal belongings of Carter when she is unpacking after being assigned as the new leader of the Atlantis expedition and interrupted by Dr. Rodney McKay. When first meeting O'Neill, Guide could clearly see the relationship between Carter and O'Neill and commented to himself that Carter's Consort has finally revealed himself and has come to support his "queen". When the battle for Atlantis is over, the two are shown to relax together. (SG1: "Divide and Conquer", "Window of Opportunity", "Paradise Lost", "Grace", "Threads", "200") (SGA: "Reunion", "Legacy: Secrets", "Inheritors")
- Charles Kawalsky: O'Neill would meet Charles Kawalsky when they were in the Air Force together and the two would become friends. In 1982, they participated in Operation East Fly. During their friendship, They both would play street hockey where according to a simulated version of Kawalsky, Kawalsky would kick O'Neill's butt. In 1996, O'Neill and Kawalsky would join the Stargate Program and be on the team that went through the Stargate. Kawalsky also served as O'Neill's second in command on the Abydos Mission. (Stargate); (SG1: "Children of the Gods", "The Enemy Within", "The Gamekeeper")
- Teal'c: O'Neill's friendship with Teal'c is one long-standing friendship that has lasted for over ten years and continues to this day. The two men met each other in grim circumstances during a mission to Chulak where SG-1 later became Apophis' prisoners. After the System Lord had chosen new people to be possessed by the Goa'uld he called his "children", Apophis then ordered for the prisoners to be killed which caused mass panic. During the rioting, O'Neill appealed to Teal'c- who had already begun to believe that his God was not a true God- insisting to Teal'c that he could save the people with Teal'c's help. Despite having heard many make that promise before and fail to deliver, Teal'c turned against his fellow Serpent Guards and chose to side with the Tau'ri, noting that O'Neill was the first person he had met who he believed could fulfil that promise. With O'Neill's help, he and Teal'c were able to kill most of the guards before O'Neill launched a staff weapon blast at the wall, creating a hole which gave everyone a chance to escape. Although Teal'c was reluctant to go, Jack eventually convinced him to join them and thus, their friendship was born. Teal'c also assisted O'Neill and SG-1 as well as SG-2 long enough for Dr. Daniel Jackson and Captain Samantha Carter to bring most of the remaining survivors back to Earth. Although Teal'c was later met with some distrust upon arriving at Stargate Command for the first time, he soon proved his loyalty and was permitted to become part of SG-1 . When Teal'c once stated he was a brother to him, O'Neill reminded him that Teal'c was twice his age; Teal'c conceded that he was a very young brother, then, though it had no importance as he was trying to comfort him while Carter was missing. Over the years, Teal'c and O'Neill's friendship has continued to grow strong with both men often willing to help the other in times of despair. (SG1: "Children of the Gods", "The Enemy Within", "Grace")
- Daniel Jackson: O'Neill and Jackson have a great respect for one another, despite their differences. Ever since the mission to Abydos, they have been on a first name basis, even after O'Neill was promoted. Although their relationship became more strained after O'Neill lied to Jackson during his undercover operation and ignored Jackson's advice during a crucial mission, in the aftermath of Jackson's Ascension they became closer once more, Jackson commenting that he was essentially O'Neill's best friend when talking with an alternate version of O'Neill. (SG1: "Shades of Grey", "Meridian", "Fallen", "Continuum")
- George S. Hammond: General Hammond has long had O'Neill's trust and respect. While O'Neill can be somewhat of a renegade, he's careful to respect Hammond as his superior. Occasionally O'Neill will disregard Hammond's orders, as he is the man on the ground, but this is never out of spite or disrespect, but simply a greater understanding of the situation in real-time. After Hammond's promotion to Lieutenant General and installation as head of Homeworld Command, O'Neill was promoted to Brigadier General and given Hammond's command of Stargate Command. O'Neill was reluctant the entire way through, going so far as to write Hammond a letter tendering his resignation and stating Hammond was a better leader than he. O'Neill was subsequently delighted to find Hammond had let himself into his office and sat in his chair. Though he was disappointed to find out Hammond was merely there to recruit Dr. Daniel Jackson into a mission he was personally leading to the Pegasus Galaxy to make contact with the Atlantis Expedition, and also disappointed that Hammond would be requisitioning his desk chair. (SG1: "Zero Hour", "Prometheus Unbound")
- Jacob Carter: Jack and Jacob have always had a mutual respect for each other, despite their superior/subordinate relationship within the United States Air Force. Jacob recognized Jack's experience and expertise, and often deferred to his judgment in strategic matters. The presence of Selmak, while distasteful to O'Neill, proved to be beneficial to their friendship as it afforded them more opportunities to work together in Tok'ra/Tau'ri operations. O'Neill was always pleased whenever the Tok'ra sent Jacob to Earth. Jacob was always aware of the mutual feelings between O'Neill and his daughter Samantha, as he clearly let on after he had met Sam's fiancé Pete Shanahan. O'Neill was genuinely saddened by Jacob and Selmak's death and made a special effort to comfort Samantha in Jacob's final hours. (SG1: "Secrets", "The Tok'ra, Part 1", "The Tok'ra, Part 2", "Reckoning, Part 1", "Reckoning, Part 2", "Threads")
Service Awards and Decorations
- Master Parachutist Badge
- Master Space Operations Badge
- Defense Distinguished Service Medal
- Air Force Distinguished Service Medal
- Defense Superior Service Medal
- Airman's Medal
- Defense Meritorious Service Medal
- Meritorious Service Medal, w/3 bronze oak leaf clusters (4 awards)
- Air Medal, w/2 bronze oak leaf clusters (3 awards)
- Aerial Achievement Medal
- Joint Service Commendation Medal
- Air Force Commendation Medal, w/2 bronze oak leaf clusters (3 awards)
- Air Force Achievement Medal, w/2 bronze oak leaf clusters (3 awards)
- Air Force Outstanding Unit Award, w/Valor and 3 bronze oak leaf clusters (4 awards)
- Air Force Organizational Excellence Award
- Combat Readiness Medal, w/1 bronze oak leaf cluster (2 awards)
- National Defense Service Medal, w/1 bronze service star (2 awards)
- Vietnam Service Medal
- Southwest Asia Service Medal, w/1 bronze service star (2 awards)
- Air Force Overseas Long Tour Service Ribbon
- Air Force Longevity Service Award, w/3 bronze oak leaf clusters (4 awards)
- Vietnam Campaign Medal
- Kuwait Liberation Medal (Saudi Arabia)
- One of his previous Iris Deactivation Codes was 903-224-637, which was discovered by First in 2002. (SG1: "Unnatural Selection")
- Is possible ambidextrous, given he's shown simultaneously writing with his right hand and eating with his left. (SG1: "Heroes, Pt. 1")
- It is thought that Lt. Colonel Samantha Carter and Brigadier General Jack O'Neill began their relationship at the end of the season eight episode" Threads". According to producer Joseph Mallozzi's blog it says: "Still, despite the lack of official confirmation, it was only natural that [she and O'Neill] should get together after the events of "Threads" and, in my mind, they have been together ever since."
- Personally recruited Henry Landry, John Sheppard and Eli Wallace into the Stargate Program.
- In the original movie, this character's last name is spelled "O'Neil", with one L. Since O'Neil in the movie and O'Neill in the series are obviously supposed to be the same person, his name is spelled in this article the same way as in SG-1/Atlantis canon, even when speaking about the events of the movie. See Stargate canon for more details about this discrepancy.
- Along with Dr. Daniel Jackson, Jack O'Neill is one of only two characters to appear in the original Stargate film, Stargate SG-1, Stargate: Atlantis and Stargate Universe.
- Jack is one of only eight characters to appear in all three series, the others being Daniel Jackson, Samantha Carter, Rodney McKay, Richard Woolsey, Bill Lee, Walter Harriman, and Kevin Marks.
- Along with Daniel Jackson, Samantha Carter, Teal'c, George S. Hammond, Walter Harriman and Sylvester Siler, he is one of only seven characters to appear in all ten seasons of Stargate SG-1.
- Jack O'Neill on Kathleen Ritter's Lexicon
- Jack O'Neill on GateWorld Omnipedia
- Jack O'Neill on Wikipedia
|Commander of SG-1
|Commander of SG-1
|Commander of Stargate Command
George S. Hammond
|Head of Homeworld Command
|Current members||Cameron Mitchell - Daniel Jackson - Teal'c of Chulak - Vala Mal Doran|
|Former members||Fred Buonarotti - Samantha Carter - Castleman - David Dixon - Hagman - Robert Makepeace - Mathison - Jonathan J. O'Neill - Jonas Quinn|