Don Sinclair Davis was an American character actor best-known for playing General Hammond in the television series Stargate SG-1, and earlier for playing Major Garland Briggs on the television series Twin Peaks. He was also a theater professor, painter, and United States Army captain.
Supernatural
The Chris Isaak Show
Twin Peaks
The New Outer Limits
MacGyver
Joanie Loves Chachi
Bordertown
West Wing
NCIS: Naval Criminal Investigative Service
Columbo
Flash Gordon
Psych
Stephen King's Dead Zone
21 Jump Street
The Sentinel
L.A. Law
Honey, I Shrunk the Kids: The TV Show
Stargate: Atlantis
Gene Roddenberry's Andromeda
Knots Landing
