Filmography
- Woodshop (2010) — Principal Jamison
- Stargate SG-1: Children of the Gods - Final Cut (2009) — Maj. Gen. George Hammond (dedicated to Davis)
- The Uninvited (2009)
- Wyvern (2008) as the Colonel (dedicated to Davis)
- Burn Up (2008)
- Beyond Loch Ness (2008) — Neil Chapman
- Far Cry (2008) — General Roderick
- Stargate: Continuum (2008) — Lt. Gen. George Hammond
- The Unquiet (2008) — Bud Rollins
- Flash Gordon (TV series) (2007) — Mr. Mitchell
- Supernatural (2007) — Trotter
- Beneath (2007) — Joseph
- Stargate SG-1 (1997–2007) — Brig. Gen/Maj. Gen./Lt. Gen. George Hammond
- Psych (2006)
- The West Wing — Reverend Don Butler
- G.I. Joe: Valor vs. Venom (2004) — Wild Bill (voice)
- Meltdown (2004) — NRC Carl Mansfield
- Miracle (2004) — Bob Fleming
- NCIS (2004) — MTAC Control Officer
- Andromeda (2004) — Avineri
- Stargate Atlantis (2004) — Maj. Gen. George Hammond
- Savage Island (2003) — Keith Young
- G.I. Joe: Spy Troops — The Movie (2003) — Wild Bill (voice)
- The Twilight Zone (2003) — Dr. Tate
- The Chris Isaak Show (2002) — Del
- Just Cause (2002) — Thornton
- Deadly Little Secrets (2001) — The Chief
- Hostage Negotiator (2001) — Alexander Daniels
- The 6th Day (2000) — Cardinal de la Jolla
- Best in Show (2000) — Mayflower Best in Show Judge Everett Bainbridge
- Suspicious River (2000) — Golf shirt man
- Atomic Train (1999) — General Harlan Ford
- The Lost World: Jurassic Park (1998) — Harbor Dispatcher (uncredited)
- Con Air (1997) — Man driving Volvo hit by falling body from plane
- Dad's Week Off (1997) — Hank
- Viper (1996) — Lloyd
- Prisoner of Zenda, Inc. (1996) — Colonel Zapf
- The Fan (1996) — Stook
- Alaska (1996) — Sergeant Grazer
- Poltergeist: The Legacy (1996) — Harold Taggart
- The Ranger, the Cook and a Hole in the Sky (1995) — Mr. Smith
- In Cold Blood (television film) (1995)
- The Outer Limits (1995) — Army General
- The Outer Limits (1995) — Detective
- The X-Files (1994) — Captain William Scully
- Needful Things (1993) — Reverend Willie Rose
- Cliffhanger (1993) — Stuart
- Highlander: The Series (1993) — Palance
- Columbo: A Bird in the Hand (1992) — Bertie
- A League of Their Own (1992) — Charlie Collins (Racine coach)
- Hook (1991) — Dr. Fields
- Mystery Date (1991) - Doheny
- The Gambler Returns: The Luck of the Draw (1991) — Rodeo announcer
- Omen IV: The Awakening (1991) — Jake Madison
- Look Who's Talking Too (1990) — Dr. Fleischer
- Twin Peaks (1990–1991) — Major Garland Briggs
- Cadence (1990) — Haig
- Look Who's Talking (1989) — Dr. Fleischer
- Stakeout (1987) — Prison Gate Guard
- The Journey of Natty Gann (1985) - Railroad Brakeman
- MacGyver (1985–1991) — Stunt Double for Dana Elcar
- Joanie Loves Chachi (1982) — Benny
Read more about this topic: Don S. Davis