Jack O'Neill
{DAYSSINCEBIRTH(birth=1952-10-20)}{DAYSSINCEBIRTH}
John J. O'Neill
O'Neil in Stargate: The Movie
Really the centerpiece of Stargate SG-1... until he left the show.
Portrayed by Kurt Russell in Stargate: The Movie and Richard Dean Anderson in Stargate SG-1 and Stargate Atlantis.