Credits

• 2024 · Sleigh Bells and Sugarplums as Doug
• 2024 · Space Command Redemption as General Joe Haldeman
• 2023 · A Gettysburg Christmas as Ron
• 2023 · Babylon 5: The Road Home as John Sheridan (voice)
• 2023 · The Warrant: Breaker's Law as Judge Thaddeus Breaker
• 2021 · MatchMaker Mysteries: The Art of the Kill as Nick Columba
• 2020 · Gourmet Detective: Roux the Day as Jim Ross
• 2019 · Holiday Date as Walter
• 2019 · MatchMaker Mysteries: A Killer Engagement as Nick Columba
• 2018 · The Christmas Contract as Tim Guidry
• 2017 · Gourmet Detective: Eat, Drink and Be Buried as Jim Ross
• 2017 · The Orville as President Alcuzan
• 2016 · Double Mommy as Scott
• 2016 · Wedding Bells as Charlie Turner
• 2015 · Supergirl as President Baker
• 2015 · So You Said Yes as Nick Blanche
• 2013 · The Thanksgiving House as Parker Mather
• 2013 · Silver Bells as Bruce Dalt
• 2013 · Cedar Cove as Bob Beldon
• 2012 · Blackout sur Los Angeles as Nathan Bell
• 2012 · TRON: Uprising as Tron
• 2012 · GCB as Burl Lourd
• 2012 · AniMen: The Galactic Battle as General Moss
• 2011 · Installing the Cast as Self
• 2011 · Launching the Legacy as Self
• 2011 · TRON: The Next Day as Alan Bradley
• 2011 · 51 as Col. Martin
• 2011 · Love's Everlasting Courage as Lloyd
• 2010 · TRON: Legacy as Alan Bradley / Tron
• 2010 · Shadows in Paradise as Cpt. Dyer
• 2010 · LEGO® Atlantis: The Movie as Captain Ace Speedman
• 2009 · Celebrity Ghost Stories as Self
• 2009 · Transmorphers: Fall of Man as Officer Hadley Ryan
• 2008 · Dead Space: Downfall as Colin Barrow (voice)
• 2008 · Aces 'N' Eights as D.C. Cracker
• 2008 · Bone Eater as Sheriff Steve Evans
• 2007 · Sharpshooter as Sheriff Garner
• 2007 · Chuck as Dr. Woody Woodcomb
• 2007 · Babylon 5: The Lost Tales - Voices in the Dark as President John Sheridan
• 2007 · The Pixar Story as Tron (archive footage)
• 2007 · 07 Spaceys as
• 2006 · Heroes as Robert Malden
• 2006 · Mystery Woman: Wild West Mystery as Clint Lawson
• 2006 · Double Cross as James
• 2006 · Falling in Love with the Girl Next Door as Frank Lucas
• 2005 · King of the Lost World as Lt. Challenger
• 2005 · Commander in Chief as Tucker Hayes
• 2005 · Legion of the Dead as Sheriff Jones
• 2005 · A Killer Upstairs as Detective Bruning
• 2005 · American Dad! as Bruce Boxleitner (voice)
• 2005 · Young Blades as Captain Duval
• 2005 · Arthur Hailey's Detective as Ketledge
• 2004 · Special Report: Zombie Invasion as The President
• 2004 · Saving Emily as Gregory
• 2004 · The Tony Danza Show as Self - Guest
• 2004 · They Are Among Us as Hugh
• 2004 · Brilliant as Dr.Dietrich
• 2004 · Snakehead Terror as Sheriff Patrick James
• 2003 · Cold Case as Huck Oberland
• 2003 · NCIS as C. Clifford Chase
• 2003 · NCIS as Clifford Chase
• 2003 · The Only Witness as Nicholas Preston
• 2003 · Killer Flood: The Day the Dam Broke as Mr. Walker
• 2003 · Gods and Generals as Lt. Gen. James Longstreet
• 2002 · Hope Ranch as J.T. Hope
• 2002 · She Spies as The Chairman
• 2002 · She Spies as The Chairman (uncredited)
• 2002 · Contagion as President Howard
• 2002 · The Making of TRON as Himself
• 2001 · Life in the Balance as
• 2001 · Crossing Jordan as Foster Eldridge
• 2000 · The Perfect Nanny as Dr. Robert Lewis
• 2000 · Perilous as Judd
• 1999 · Twice in a Lifetime as Ray Patterson / Dr. Goode
• 1999 · Babylon 5: A Call to Arms as John J. Sheridan
• 1999 · Free Fall as Mark Ettinger
• 1998 · Babylon 5: Thirdspace as Capt. John J. Sheridan
• 1998 · Babylon 5: In the Beginning as John J. Sheridan
• 1997 · Danielle Steel's Zoya as Clayton Andrews
• 1995 · The Outer Limits as Senator Wyndom Brody
• 1995 · The Maharaja's Daughter as Patrick O'Riley
• 1994 · Touched by an Angel as Scott Tanner
• 1994 · Wyatt Earp: Return to Tombstone as Sam, Sheriff of Cochise County
• 1994 · Gunsmoke: One Man's Justice as Davis Healy
• 1994 · Babylon 5 as John Sheridan
• 1994 · Babylon 5 as Self
• 1994 · Babylon 5 as Capt. John J. Sheridan
• 1993 · House of Secrets as Dr. Frank Ravinel
• 1993 · Flight from Justice as
• 1992 · Double Jeopardy as Jack Hart
• 1992 · Perfect Family as Allan Bodine
• 1992 · The Secret as Patrick Dunmore
• 1992 · The Babe as Jumpin' Joe Dugan
• 1992 · Kuffs as Brad Kuffs
• 1991 · Diplomatic Immunity as Cole Hickel
• 1991 · Murderous Vision as Detective Kyle Robeshaw
• 1990 · Breakaway as Joey
• 1990 · Love with a Twist as Host
• 1989 · Judith Krantz's Till We Meet Again as Jock Hampton
• 1989 · Tales from the Crypt as Winton Robbins
• 1989 · The Road Raiders as Charlie
• 1989 · From the Dead of Night as Peter Langford
• 1988 · The Town Bully as
• 1988 · Red River as Matthew Garth
• 1987 · The Gambler, Part III: The Legend Continues as Billy Montana
• 1987 · Angel in Green as Captain William Wicker
• 1987 · Passion Flower as Larry Janson
• 1986 · Louis L'Amour's Down the Long Hills as Scott Collins
• 1986 · The Return of Mickey Spillane's Mike Hammer as Himself
• 1983 · The Gambler: The Adventure Continues as Billy Montana
• 1983 · The Gambler: The Adventure Continues as Billy Montana
• 1983 · Scarecrow and Mrs. King as Lee Stetson
• 1983 · I Married Wyatt Earp as Wyatt Earp
• 1982 · Bare Essence as Chase Marshall
• 1982 · Bring 'Em Back Alive as Frank Buck
• 1982 · Tron as Alan Bradley / Tron
• 1981 · Fly Away Home as Carl Danton
• 1981 · East of Eden as Charles Trask
• 1980 · The Gambler as Billy Montana
• 1980 · The Baltimore Bullet as Billie Joe Robbins
• 1980 · Wild Times as Vern Tyree
• 1979 · The Last Convertible as George Virdon
• 1978 · Happily Ever After as Jack Gregory
• 1977 · Murder at the World Series as Cisco
• 1977 · How the West Was Won as Luke Macahan
• 1976 · Battle of the Network Stars as Himself - CBS Team
• 1976 · Kiss Me, Kill Me as Douglas Lane
• 1976 · The Macahans as Seth Macahan
• 1975 · Sixpack Annie as Bobby Joe
• 1975 · A Cry for Help as Richie Danko
• 1975 · Baretta as Dom
• 1974 · Police Woman as Ed Krohl
• 1974 · The Chadwick Family as Danny
• 1970 · The Mary Tyler Moore Show as Rick Welch
• 1968 · Hawaii Five-O as Cam Farraday
• 1968 · Hawaii Five-O as Kevin Caulder
• 1968 · Hawaii Five-O as Paul Colburn
• 1955 · Gunsmoke as Toby Hogue
• 1944 · Golden Globe Awards as Self - Presenter