Vern Alberts is a Technical Sergeant in the United States Air Force stationed at Stargate Command. His post as a technician makes him responsible for the activities in the Stargate Operations room.
He was in the Stargate Operations room when the Tollan Narim sent the cat Schrödinger through the Stargate. (SG1: "Pretense")
When SG-1 was wearing the Atanik armbands and defied orders to go through the Stargate, he was on duty in the Stargate Operations room. Major Samantha Carter rendered him unconscious with an injection in his neck. (SG1: "Upgrades")
During the time loop, he was in the halls of Stargate Command when Colonel Jack O'Neill rode past him on a bicycle and asked him how his wife was. (SG1: "Window of Opportunity")
He was also present in the Operations Room when Jonas Quinn arrived. (SG1: "Fallout")