Biography
Donald Sinclair Davis (August 4, 1942 – June 29, 2008) was an American actor, artist, and former military officer. He began his career as a theater professor before transitioning to acting. He became known for his role as General George Hammond in Stargate SG-1 (1997–2007) and Major Garland Briggs in Twin Peaks (1990–1991). Davis appeared in numerous films, including A League of Their Own (1992), The Fan (1996), The 6th Day (2000), and Far Cry (2008). He often portrayed authority figures and military characters, reinforced by his real-life experience as a U.S. Army captain. In addition to acting, he was a talented painter and sculptor. He studied theater and art at Southwest Missouri State College and later earned a Ph.D. in Theater Arts from Southern Illinois University. Davis was married to Ruby Fleming-Davis and remained an influential presence in film and television until his passing.
Acted in 121
2010s
- 2014
Twin Peaks: The Missing Pieces
Maj. Garland Briggs
2000s
- 2009
Stargate SG-1: Children of the Gods
Major General George Hammond
- 2008
Vipers
Dr. Silverton
Burn Up
The Man · 1 episode
The Unquiet
Bud Rollins
The Guard
Chuck · 1 episode
- 2007
Beneath
Joseph
The Still Life
Mr. Fernot
- 2006
- 2005
Child of Mine
Police Chief
- 2004
G.I. Joe: Valor vs. Venom
Wild Bill (voice)
- 2003
G.I. Joe: Spy Troops
Wild Bill (voice)
- 2002
Just Cause
Thorton · 2 episodes
Deadly Little Secrets
The Chief
- 2001
Suspicious River
Golf Shirt Man
Hostage Negotiator
Alexander Daniels
- 2000
1990s
- 1999
Atomic Train
General Harlan Ford · 2 episodes
- 1997
Tricks
Man
The Stepsister
Detective Church
Dad's Week Off
Hank
- 1996
The Angel of Pennsylvania Avenue
Dewey
In Cold Blood
Roy Church · 2 episodes
The Prisoner of Zenda, Inc.
Colonel Zapf
Alaska
Sergeant Grazer
The Limbic Region
Chief Payne
Kidz in the Wood
Principal
Brothers of the Frontier
Byron Holcomb
- 1995
A Dream is a Wish Your Heart Makes: The Annette Funicello Story
Glen Holt
Beauty's Revenge
Sheriff
Black Fox
Movie
She Stood Alone: The Tailhook Scandal
Movie
- 1994
Max
Earl Pomerance
Avalanche
Whitney
- 1993
Final Appeal
Judge Gray
Heritage Minutes: Sam Steele
Norris
Without a Kiss Goodbye
Mr. Harper
Miracle on Interstate 880
Dave
- 1992
Dead Ahead: The Exxon Valdez Disaster
Bill Stevens
Calendar Girl, Cop, Killer? The Bambi Bembenek Story
McCann
Nightmare Cafe
Sheriff Dan Filcher · 1 episode
- 1991
Posing: Inspired by Three Real Stories
Philip Baywood
Captive
Deputy Mack
Chaindance
Sergeant
Blood River
Congressman Howard K. Apples
- 1990
Broken Badges
Chief Sterling · 3 episodes
Memories of Murder
Lt. Silk
Waiting for the Light
Dr. Norman
Rescue Force
Commando
1980s
- 1989
Twin Peaks
Maj. Garland Briggs
The Lady Forgets
Dr. Bennett
- 1988
- 1987
The New Adventures of Beans Baxter
Agent Ruck · 1 episode
Deadly Deception
Coroner's Assistant
- 1986
Spot Marks the X
Mr. Haskell
Hero in the Family
Capcom
I-Man
Surgeon
- 1985
Other crew 1
2000s
- 2009
Stargate SG-1: Children of the Gods
In Memory Of
Appearances2
2010s
- 2014
Moving Through Time: Fire Walk With Me Memories
Self
2000s
- 2007
Secrets from Another Place: Creating Twin Peaks
Self