| Movie | 1992 | A River Runs Through It | Rev. Maclean | |
| Movie | 1970 | M*A*S*H | Duke Forrest | |
| Movie | 1997 | Contact | David Drumlin | |
| Movie | 2006 | Desperation | John Edward Marinville | |
| Movie | 1986 | Top Gun | Viper | |
| Movie | 1988 | Poltergeist III | Bruce Gardner | |
| Movie | 1987 | Maid to Order | Charles Montgomery | |
| Movie | 1989 | Steel Magnolias | Drum Eatenton | |
| Movie | 1991 | Wild Orchid II: Two Shades of Blue | Ham McDonald | |
| Movie | 1972 | Fuzz | Det. Bert Kling | |
| Movie | 1992 | Singles | Mayor Weber | |
| Movie | 1983 | The Dead Zone | Sheriff Bannerman | |
| Movie | 2009 | Whiteout | Dr. John Fury | |
| Movie | 2003 | Path to War | William Westmoreland | |
| Movie | 1992 | Knight Moves | Frank Sedman | |
| Movie | 1981 | Savage Harvest | Casey | |
| Movie | 1990 | The Rookie | Eugene Ackerman | |
| Movie | 1964 | One Man's Way | Leonard Peale, Grown | |
| Movie | 1970 | The Moonshine War | Neighbor (uncredited) | |
| Movie | 1978 | Maneaters Are Loose! | John Gosford | |
| Movie | 1974 | Thieves Like Us | Dee Mobley | |
| Movie | 2009 | For Sale by Owner | Clive Farrier | |
| Movie | 1962 | War Hunt | Sgt. Stan Showalter | |
| Movie | 1992 | Poison Ivy | Darryl Cooper | |
| Movie | 2003 | Tears of the Sun | Captain Bill Rhodes | |
| Movie | 2001 | Texas Rangers | Richard Dukes | |
| Movie | 1986 | Opposing Force | Logan | |
| Movie | 1986 | SpaceCamp | Zack | |
| Movie | 1986 | Wisdom | Lloyd Wisdom | |
| Movie | 2006 | Mammoth | Simon Abernathy | |
| Movie | 2008 | Dr. Jekyll and Mr. Hyde | Gabe Utterson | |
| Movie | 2009 | The Velveteen Rabbit | Horse (voice) | |
| Movie | 1971 | Wild Rovers | John Buckman | |
| Movie | 1964 | Those Calloways | Whit Turner | |
| Movie | 1977 | The Turning Point | Wayne | |
| Movie | 1976 | Plot of Fear | Chief Inspector | |
| Movie | 1974 | Big Bad Mama | Fred | |
| Movie | 1975 | The Devil's Rain | Tom Preston | |
| Movie | 2006 | Bonneville | Emmett L. Johnson | |
| Movie | 1999 | The Other Sister | Radley Tate | |
| Movie | 1997 | Divided by Hate | Steve Riordan | |
| Movie | 2006 | Fallen | Zeke | |
| Movie | 1986 | The Parent Trap II | Bill Grand | |
| Movie | 1978 | Ice Castles | Marcus Winston | |
| Movie | 2002 | Changing Hearts | Johnny Pinkley | |
| Movie | 2003 | The Beast Within: Making Alien | Self | |
| Movie | 2000 | High Noon | Will Kane | |
| Movie | 2012 | Ted | Tom Skerritt | |
| Movie | 1989 | The Heist | Ebbet Berens | |
| Movie | 2011 | Redemption Road | Santa | |
| Movie | 1967 | A Bell for Adano | Sgt. Trapani | |
| Movie | 1965 | The Further Adventures of Gallegher | Corky Mardis | |
| Movie | 2012 | Soda Springs | Walt Jackson | |
| Movie | 2005 | Vinegar Hill | Fritz Grier | |
| Movie | 2003 | Swing | George Verdi | |
| Movie | 1982 | Fighting Back | John D'Angelo | |
| Movie | 2004 | Homeland Security | Admiral McKee | |
| Movie | 1999 | The Hunt for the Unicorn Killer | Fred Maddux | |
| Movie | 1998 | Two for Texas | Sam Houston | |
| Movie | 1982 | A Dangerous Summer | Howard Anderson | |
| Movie | 1984 | Calendar Girl Murders | Lieutenant Dan Stoner | |
| Movie | 2000 | An American Daughter | Walter | |
| Movie | 1990 | Child in the Night | Detective Bass | |
| Movie | 1990 | The China Lake Murders | Sheriff Sam Brodie | |
| Movie | 1987 | Poker Alice | Jeremy Collins | |
| Movie | 1994 | Over California in High Definition | Narrator (voice) | |
| Movie | 2013 | At Middleton | Dr. Roland Emerson | |
| Movie | 2002 | Greenmail | Tom Bradshaw | |
| Movie | 2011 | Over Hawaii | Narrator (voice) | |
| Movie | 1988 | Nightmare at Bittercreek | Ding | |
| Movie | 1988 | Moving Target | Joseph Kellogg | |
| Movie | 1989 | Big Man on Campus | Dr. Webster | |
| Movie | 2013 | Redwood Highway | Pete Peterson | |
| Movie | 1974 | Run, Run, Joe! | Margherito | |
| Movie | 2016 | A Hologram for the King | Ron Clay | |
| Movie | 2009 | Seattle’s Forgotten World’s Fair: The Alaska-Yukon-Pacific Exposition | Narrator (voice) | |
| Movie | 1989 | Red King, White Knight | Stoner | |
| Movie | 2025 | Broke | Cliff | |
| Movie | 2014 | Wings: Sky Force Heroes | Colonel (voice) | |
| Movie | 1976 | La madama | Jack | |
| Movie | 1978 | Up in Smoke | Strawberry | |
| Movie | 1987 | The Big Town | Phil Carpenter | |
| Movie | 1981 | Silence of the North | Walter Reamer | |
| Movie | 2008 | Beer for My Horses | Sheriff Wilson Landry | |
| Movie | 1975 | The Last Day | Bill Powers | |
| Movie | 1990 | She'll Take Romance | Judge Warren Danvers | |
| Movie | 1992 | Getting Up and Going Home | Jack Montgomery | |
| Movie | 2024 | A Look Through His Lens | Self | |
| Movie | 2011 | Your Love Never Fails | Jack Connors | |
| Movie | 1971 | Harold and Maude | Motorcycle Officer | |
| Movie | 2000 | Enlisted: The Story of 'M*A*S*H' | Self | |
| Movie | 2010 | Soaring Over America | | |
| Movie | 1997 | What the Deaf Man Heard | Norm Jenkins | |
| Movie | 2000 | Jackie Bouvier Kennedy Onassis | Joseph P. "Joe" Kennedy | |
| Movie | 1979 | Alien | Dallas | |
| Movie | 2015 | Field of Lost Shoes | Ulysses S. Grant | |
| Movie | 1986 | Miles to Go… | Stuart Browning | |
| Movie | 2014 | The Rocky Mountain Fly Highway | Narrator (voice) | |
| Movie | 1984 | A Touch of Scandal | Father Dwelle | |
| Movie | 2002 | The Alien Saga | Self | |
| Movie | 2016 | Journey Back to Christmas | Tobias Cook | |
| Movie | 2009 | The Legend of Pancho Barnes and the Happy Bottom Riding Club | Narrator | |
| Movie | 2005 | Category 7: The End of the World | Colonel Mike Davis | |
| Movie | 2017 | Lucky | Fred | |
| Movie | 1992 | In Sickness and in Health | Jerritt Mattison | |
| Movie | 1988 | Honor Bound | Sam Cahill | |
| Movie | 2017 | Day of Days | Walter | |
| Movie | 2008 | Over America | | |
| Movie | 2019 | The Phantom 52 | The Phantom | |
| Movie | 2019 | Memory: The Origins of Alien | Self | |
| Movie | 1998 | Smoke Signals | Police Chief | |
| Movie | 1999 | Into the Wild Blue | Host | |
| Movie | 2021 | East of the Mountains | Ben Givens | |
| Movie | 1973 | The Birdmen | Orville Fitzgerald | |
| Movie | 2021 | Catch the Bullet | Dex | |
| Movie | 1990 | A Question About Sex | Jim | |
| Movie | 2025 | Alien: Terror in Space | Self - Actor | |
| Movie | 2000 | Altman on His Own Terms | Self | |
| TV Show | 1966 | The Time Tunnel | Matthew Gebhardt | 1 |
| TV Show | 2006 | Brothers and Sisters | William Walker | 6 |
| TV Show | 1965 | The F.B.I. | Robert Hastings | 1 |
| TV Show | 2004 | Huff | | 2 |
| TV Show | 1968 | Hawaii Five-O | Lew Morgan | 1 |
| TV Show | 1985 | The Twilight Zone | (segment "What Are Friends For?") | 1 |
| TV Show | 1996 | E! True Hollywood Story | | 1 |
| TV Show | 1975 | Baretta | | 1 |
| TV Show | 1999 | Law & Order: Special Victims Unit | Oliver Taft | 1 |
| TV Show | 1967 | Mannix | Morgan Carpenter | 1 |
| TV Show | 2001 | History vs. Hollywood | Self | 1 |
| TV Show | 1955 | Gunsmoke | Edmund Dano | 1 |
| TV Show | 1962 | Combat! | Hicks | 1 |
| TV Show | 1971 | Cannon | Bud | 3 |
| TV Show | 1998 | Will & Grace | Dr. Jay Markus | 1 |
| TV Show | 1993 | Late Night with Conan O'Brien | Self - Guest | 1 |
| TV Show | 1951 | Hallmark Hall of Fame | Norm Jenkins | 1 |
| TV Show | 1994 | Chicago Hope | Jim Kellner | 1 |
| TV Show | 2005 | The Colbert Report | Viper (archive footage) | 1 |
| TV Show | 1974 | Kolchak: The Night Stalker | | 0 |
| TV Show | 1966 | Felony Squad | | 1 |
| TV Show | 1965 | Run for Your Life | Lou Patterson | 1 |
| TV Show | 1963 | The Fugitive | Neely Hollister | 1 |
| TV Show | 1975 | S.W.A.T. | | 1 |
| TV Show | 1962 | The Virginian | Eric Kroeger | 1 |
| TV Show | 1968 | Lancer | | 1 |
| TV Show | 1963 | The Fugitive | Pete Edwards | 1 |
| TV Show | 1983 | The Hitchhiker | Detective Frank Sheen | 1 |
| TV Show | 2004 | The Grid | | 6 |
| TV Show | 1974 | The Manhunter | | 1 |
| TV Show | 2008 | The Trojan Horse | President Stanfield | 2 |
| TV Show | 1974 | Get Christie Love! | | 1 |
| TV Show | 2007 | Fallen | Zeke | 1 |
| TV Show | 1983 | Ryan's Four | Dr. Thomas Ryan | 5 |
| TV Show | 2007 | Killer Wave | Victor Bannister | 2 |
| TV Show | 1964 | 12 O'Clock High | Lt. Paddy Gialella | 1 |
| TV Show | 1999 | Aftershock: Earthquake in New York | Thomas Ahearn | 2 |
| TV Show | 2009 | White Collar | Alan Mitchell | 1 |
| TV Show | 1974 | Kolchak: The Night Stalker | Robert W. Palmer | 1 |
| TV Show | 1999 | The West Wing | Chris Carrick | 1 |
| TV Show | 1956 | Tony Awards | Self - Presenter | 1 |
| TV Show | 2004 | Homeland Security | Admiral Theodore McKee | 1 |
| TV Show | 1992 | Picket Fences | Jimmy Brock | 88 |
| TV Show | 1954 | The Wonderful World of Disney | Corky Mardis | 1 |
| TV Show | 1971 | Nichols | Charley Doyle | 1 |
| TV Show | 1965 | The F.B.I. | John Clarence Rim | 1 |
| TV Show | 1965 | The F.B.I. | Thorn Hazard | 1 |
| TV Show | 1965 | The F.B.I. | Bill Leonard | 1 |
| TV Show | 1962 | Combat! | Burke | 1 |
| TV Show | 1962 | Combat! | Sgt. Decker | 1 |
| TV Show | 1962 | The Virginian | Rev. Paul Martinson | 1 |
| TV Show | 1962 | The Virginian | Billy Landers | 1 |
| TV Show | 1955 | Gunsmoke | Ben Stone | 1 |
| TV Show | 1955 | Gunsmoke | Orv Timpson | 1 |
| TV Show | 1955 | Gunsmoke | Fred Garth | 1 |
| TV Show | 1955 | Gunsmoke | Tuck Frye | 1 |
| TV Show | 1962 | The Virginian | Moran | 1 |
| TV Show | 1985 | Danger Bay | Don Bared | 1 |
| TV Show | 2007 | Tim and Eric Awesome Show, Great Job! | Self | 1 |
| TV Show | 2016 | The American West | Self | 8 |
| TV Show | 1959 | Bonanza | Jerry | 1 |
| TV Show | 1959 | Bonanza | Corporal Bill Tanner | 1 |
| TV Show | 1976 | Origins of the Mafia | Bernardino Campo | 5 |
| TV Show | 1962 | The Tonight Show Starring Johnny Carson | Self | 1 |
| TV Show | 1957 | Wagon Train | Hamish Browne | 1 |
| TV Show | 1999 | The Hunt For The Unicorn Killer | Fred Maddux | 2 |
| TV Show | 1964 | 12 O'Clock High | Lt. Steve Parmalee | 1 |
| TV Show | 2005 | Category 7: The End of the World | Colonel Mike Davis | 2 |
| TV Show | 2008 | Leverage | Jimmy Ford | 2 |
| TV Show | 1982 | Cheers | Evan Drake | 6 |
| TV Show | 2005 | The Closer | Det. Joey 'O' Olin | 1 |
| TV Show | 1962 | The Alfred Hitchcock Hour | Frank Farmer | 1 |
| TV Show | 1957 | The Real McCoys | Mailman | 1 |
| TV Show | 2000 | Backstory | Self | 1 |
| TV Show | 2009 | The Good Wife | James Paisley | 2 |
| TV Show | 1944 | Golden Globe Awards | Self - Nominee | 2 |
| TV Show | 1944 | Golden Globe Awards | Self | 1 |
| TV Show | 2002 | The Dead Zone | Herb Smith | 1 |
| TV Show | 2014 | Madam Secretary | Patrick McCord | 1 |
| TV Show | 1968 | The Outsider | Arnie Cambor | 1 |
| TV Show | 1967 | Cimarron Strip | Enoch Shelton | 1 |
| TV Show | 2022 | Going Home | Vance Baker | 1 |
| TV Show | 2000 | Jackie Bouvier Kennedy Onassis | Joseph P. "Joe" Kennedy | 2 |
