Stackhouse is a sergeant in the United States Marine Corps, and a member of the Atlantis expedition to the Pegasus galaxy. Stackhouse leads one of the new base's reconnaissance teams to explore other worlds. The Athosian Halling has served as a guide to Stackhouse's team on some of these early missions, introducing the Humans from Earth to the cultures of the Pegasus Galaxy. He can also speak the Serbian language. (SGA: "Rising", "Suspicion")
A short time later, he and Sgt. Markham joined Major John Sheppard and his team on a mission to the Wraith homeworld. On the return trip, the Puddle Jumper became lodged in the Stargate with him in the forward section. Since he had already crossed the event horizon, he was unaware of what happened when they finally reached Atlantis. (SGA: "Thirty-Eight Minutes")
He and his team joined Major John Sheppard's team on a mission to an unnamed planet. Once there, they were attacked by the Wraith. He provided cover fire while Dr. Rodney McKay helped Sheppard through the Gate, Sheppard having been knocked unconscious after being hit with a blast from a Wraith stunner. (SGA: "Suspicion")
|Appearances for Stackhouse|
In chronological order:
- The fact Sgt. Stackhouse speaks Serbian is likely a nod to his actor, Boyan Vukelic being a Canadian Serb.