Acting

2009		Stargate SG-1: Children of the Gods as Colonel Jack O'Neill
2009		Stargate - En route vers les étoiles as O'Neil - Lui même

2008

as Major General Jack O'Neill

1997

as Lt. Michael Brooks

1995

as Bill Parish

1994		MacGyver: Trail to Doomsday as Angus MacGyver
1994		Beyond Betrayal as Bradley
1994		MacGyver: Lost Treasure of Atlantis as MacGyver

1992		Through the Eyes of a Killer as Ray Bellano
1992		In the Eyes of a Stranger as Jack Rourke

1988

as Self (archive footage)

1986		Ordinary Heroes as Tony Kaiser
1986		Odd Jobs as Spud

1982

as Drug dealer

Production

1997

… Executive Producer

1994

… Executive Producer