Robert Thornbird

Major Robert Thornbird working at Cheyenne Mountain in the late 1960s. When SG-1 appeared in their training facility, having traveled back in time, he believed them to be Soviet spies. Before having the team be sent away, he interrogated Jack O'Neill for information. Unable to reveal his identity, for fear of altering history, O'Neill told Thornbird first that he was Captain Kirk and then Luke Skywalker.