| Movie | 1965 | The Cincinnati Kid | William Jefferson Slade | |
| Movie | 1976 | The Man Who Fell to Earth | Nathan Bryce | |
| Movie | 2002 | Men in Black II | Zed | |
| Movie | 1997 | Men in Black | Zed | |
| Movie | 1995 | Canadian Bacon | General Dick Panzer | |
| Movie | 2006 | Marie Antoinette | Louis XV | |
| Movie | 1982 | Airplane II: The Sequel | Bud Kruger / President Reagan | |
| Movie | 2006 | Sweet Bird of Youth: Chasing Time | Self | |
| Movie | 1984 | Cat on a Hot Tin Roof | Big Daddy | |
| Movie | 1987 | Extreme Prejudice | Sheriff Hank Pearson | |
| Movie | 2000 | Wonder Boys | Q | |
| Movie | 1982 | A Stranger Is Watching | Artie Taggart | |
| Movie | 1993 | RoboCop 3 | The CEO | |
| Movie | 2007 | Bee Movie | Lou Lo Duca (voice) | |
| Movie | 1990 | By Dawn's Early Light | Colonel Fargo | |
| Movie | 1978 | Coma | Dr. George | |
| Movie | 2005 | Forty Shades of Blue | Alan James | |
| Movie | 1995 | How to Make an American Quilt | Arthur | |
| Movie | 1997 | Hercules | Zeus (voice) | |
| Movie | 1991 | Defending Your Life | Bob Diamond | |
| Movie | 1999 | The Insider | John Scanlon | |
| Movie | 1998 | Senseless | Randall Tyson | |
| Movie | 2004 | DodgeBall: A True Underdog Story | Patches O'Houlihan | |
| Movie | 1996 | Down Periscope | Admiral Winslow | |
| Movie | 1962 | Sweet Bird of Youth | Thomas 'Tom' J. Finley, Jr. | |
| Movie | 2003 | Rolling Kansas | Oldman | |
| Movie | 2001 | Freddy Got Fingered | Jim Brody | |
| Movie | 1999 | Balloon Farm | Harvey Potter | |
| Movie | 1991 | Dolly Dearest | Karl Resnick | |
| Movie | 2006 | Zoom | Larraby | |
| Movie | 2008 | Turn the River | Quinette | |
| Movie | 1980 | One Trick Pony | Walter Fox | |
| Movie | 1961 | King of Kings | Judas | |
| Movie | 1966 | You're a Big Boy Now | I.H. Chanticleer | |
| Movie | 1959 | Pork Chop Hill | Lt. Walter Russell | |
| Movie | 1987 | Nadine | Buford Pope | |
| Movie | 2009 | American Cowslip | Trevor O'Hart | |
| Movie | 1991 | Another Pair of Aces: Three of a Kind | Captain Jack Parsons | |
| Movie | 2004 | Eulogy | Edmund Collins | |
| Movie | 1982 | The Beastmaster | Maax | |
| Movie | 2004 | Welcome to Mooseport | Bert Langdon | |
| Movie | 2005 | The Sisters | Dr. Chebrin | |
| Movie | 2009 | Happy Tears | Joe | |
| Movie | 1992 | Dead Ahead: The Exxon Valdez Disaster | Admiral Paul Yost - Presidential Delegation | |
| Movie | 1967 | Beach Red | Gunnery Sgt. Ben Honeywell | |
| Movie | 2004 | Love Object | Novak | |
| Movie | 1984 | City Heat | Primo Pitt | |
| Movie | 1957 | Time Limit | Lt. George Miller | |
| Movie | 1979 | The Seduction of Joe Tynan | Senator Kittner | |
| Movie | 1997 | Trial and Error | Benny Gibbs | |
| Movie | 1984 | Flashpoint | Sheriff Wells | |
| Movie | 1993 | Beyond the Law | Deputy Prescott | |
| Movie | 1979 | Heartland | Clyde Stewart | |
| Movie | 1993 | Where the Rivers Flow North | Noel Lord | |
| Movie | 1985 | Summer Rental | Scully | |
| Movie | 1984 | Scarab | Khepera | |
| Movie | 1984 | Songwriter | Dino McLeish | |
| Movie | 1969 | Coming Apart | Joe | |
| Movie | 1973 | Payday | Maury Dann | |
| Movie | 2011 | National Lampoon's The Legend of Awesomest Maximus | King Looney | |
| Movie | 1983 | Misunderstood | Will | |
| Movie | 1972 | Slaughter | Dominic Hoffo | |
| Movie | 1985 | Beer | Buzz Beckerman | |
| Movie | 1963 | Critic's Choice | Dion Kapakos | |
| Movie | 1982 | Jinxed! | Harold Benson | |
| Movie | 1966 | One Spy Too Many | Alexander | |
| Movie | 1989 | Cold Feet | Sheriff | |
| Movie | 1988 | April Morning | Solomon Chandler | |
| Movie | 1970 | Tropic of Cancer | Henry Miller | |
| Movie | 1989 | Hit List | Vic Luca | |
| Movie | 2012 | Norman Mailer: The American | Self | |
| Movie | 1977 | The Private Files of J. Edgar Hoover | Dwight Webb | |
| Movie | 1974 | Crazy Joe | Richie | |
| Movie | 1980 | First Family | General G. E. Dumpston | |
| Movie | 1971 | 1 P.M. | Self | |
| Movie | 1977 | Nasty Habits | Father Maximilian | |
| Movie | 1958 | Johnny Belinda | Locky McCormick | |
| Movie | 1957 | A Face in the Crowd | Barry Mills (uncredited) | |
| Movie | 1983 | Cross Creek | Marsh Turner | |
| Movie | 1999 | The Almost Perfect Bank Robbery | Royce | |
| Movie | 1971 | Maidstone | Raoul Rey O'Houlihan | |
| Movie | 1968 | Beyond the Law | Popcorn | |
| Movie | 1968 | Sol Madrid | Dano Villanova | |
| Movie | 1962 | Hero's Island | Nicholas Gates | |
| Movie | 2007 | The Making of Marie Antoinette | Self | |
| Movie | 1958 | Bomber's Moon | Lieutenant Harrison | |
| Movie | 2007 | Three Days to Vegas | Joe Wallace | |
| Movie | 1989 | Silence Like Glass | Dr. Markowitz | |
| Movie | 1987 | J. Edgar Hoover | Lyndon Baines Johnson | |
| Movie | 2012 | Men in Black 3 | Large-Headed Alien at Funeral (uncredited) | |
| Movie | 1987 | Destination: America | Corbet St. James IV | |
| Movie | 1999 | Passing Glory | Father Robert Grant | |
| Movie | 1978 | Steel Cowboy | K.W. Hicks | |
| Movie | 2000 | A Vision of Murder: The Story of Donielle | Detective Manny Garett | |
| Movie | 2005 | Yours, Mine & Ours | Commandant Sherman | |
| Movie | 2009 | The Afterlight | Carl | |
| Movie | 1990 | Pair of Aces | Capt. Jack Parsons | |
| Movie | 1987 | The King of Love | Jack Kraft | |
| Movie | 1985 | The Execution | Wilheim Gehbert | |
| Movie | 2000 | Clint Eastwood: Out of the Shadows | Self | |
| Movie | 1994 | Heart of a Child | Dr. Leonard Bailey | |
| Movie | 1991 | Death Falls | Dub Farley | |
| Movie | 1971 | Montserrat | Izquierdo | |
| Movie | 2008 | August | David Sterling | |
| Movie | 1976 | Birch Interval | Thomas | |
| Movie | 1986 | Manhunt for Claude Dallas | Tim Nettleton | |
| Movie | 1980 | Rape and Marriage: The Rideout Case | Charles Burt | |
| Movie | 1975 | Attack on Terror: The FBI vs. the Ku Klux Klan | Glen Tuttle | |
| Movie | 1980 | Sophia Loren: Her Own Story | Carlo Ponti | |
| Movie | 1973 | The President's Plane Is Missing | George Oldenburg | |
| Movie | 1979 | A Shining Season | Jack Baker | |
| Movie | 1989 | Sweet Bird of Youth | Boss Finley | |
| Movie | 1984 | When She Says No | Stuart Blankfort | |
| Movie | 1991 | My Son Johnny | Brian Stansbury | |
| Movie | 1990 | Beautiful Dreamers | Walt Whitman | |
| Movie | 1987 | Laguna Heat | Joe Datilla | |
| Movie | 1995 | Letter to My Killer | | |
| Movie | 1969 | Lions Love | The Beard Director (uncredited) | |
| Movie | 1990 | Kojak: None So Blind | Gideon Hogarth | |
| Movie | 1956 | Baby Doll | The Dentist (uncredited) | |
| Movie | 1996 | The Hindenburg | Narrator | |
| Movie | 1992 | T Bone N Weasel | Happy Sam | |
| Movie | 2008 | Lucky Days | Bobo | |
| Movie | 1973 | Cotter | Roy | |
| Movie | 1961 | 24 Hours in a Woman's Life | Paul | |
| Movie | 1995 | She Stood Alone: The Tailhook Scandal | Adm. Snyder | |
| Movie | 2007 | The Making Of 'The Larry Sanders Show' | Arthur | |
| Movie | 1992 | Fires of Kuwait | Narrator (voice) | |
| Movie | 2003 | Maniac Magee | George McNab | |
| Movie | 1992 | A Mother's Right: The Elizabeth Morgan Story | Bill Morgan | |
| Movie | 1978 | Betrayal | Dr. Hartogs | |
| Movie | 2008 | The Golden Boys | Capt. Jeremiah Burgess | |
| Movie | 1995 | For Better or Worse | Capt. Cole | |
| Movie | 1995 | James Dean: A Portrait | Self (Narrator) | |
| Movie | 1967 | Lionpower from MGM | | |
| Movie | 2011 | 3 Weeks to Daytona | Sal | |
| TV Show | 1963 | The Great Adventure | Lieutenant John C. Freemont | 1 |
| TV Show | 1992 | The Larry Sanders Show | Arthur | 90 |
| TV Show | 1960 | Route 66 | Alvah Clayhorne | 1 |
| TV Show | 1952 | Omnibus | | 1 |
| TV Show | 1958 | Naked City | Ansel Boake | 1 |
| TV Show | 2000 | Soul Food | Peter Redmond | 1 |
| TV Show | 1967 | Mannix | Victor Roarke | 1 |
| TV Show | 1962 | Combat! | Avery | 1 |
| TV Show | 2006 | 30 Rock | Don Geiss | 8 |
| TV Show | 1998 | Will & Grace | Lionel Banks | 4 |
| TV Show | 1951 | Hallmark Hall of Fame | Locky McCormick | 1 |
| TV Show | 2003 | The Lyon's Den | | 3 |
| TV Show | 1993 | Late Night with Conan O'Brien | Self - Guest | 1 |
| TV Show | 1994 | Chicago Hope | | 1 |
| TV Show | 1955 | Alfred Hitchcock Presents | Steve Morgan #22 | 1 |
| TV Show | 2004 | Extreme Dodgeball | | 30 |
| TV Show | 1960 | Thriller | Duncan Corey | 1 |
| TV Show | 1961 | Ben Casey | | 1 |
| TV Show | 1963 | The Lieutenant | Sgt. Karl Kasten | 1 |
| TV Show | 1982 | The Blue and the Gray | Ulysses S. Grant | 3 |
| TV Show | 1963 | Breaking Point | | 1 |
| TV Show | 1961 | Dr. Kildare | Dr. Nicholas Keefe | 2 |
| TV Show | 1972 | Ghost Story | Jonathon | 1 |
| TV Show | 1978 | The Eddie Capra Mysteries | | 1 |
| TV Show | 1963 | Channing | Donald Burrows | 1 |
| TV Show | 1985 | North and South | Adolphus | 3 |
| TV Show | 1999 | Seasons of Love | Spence | 2 |
| TV Show | 1979 | Blind Ambition | Richard M. Nixon | 4 |
| TV Show | 1985 | The Atlanta Child Murders | Lewis Slaton | 2 |
| TV Show | 1959 | Bonanza | Will Hewitt | 1 |
| TV Show | 1955 | Alfred Hitchcock Presents | Ernie Walters | 1 |
| TV Show | 1951 | Hallmark Hall of Fame | Solomon Chandler | 1 |
| TV Show | 1971 | Columbo | Leon Lamarr | 1 |
| TV Show | 1961 | The Dick Powell Show | Joel Coles | 1 |
| TV Show | 1997 | Ghost Stories | The Narrator | 44 |
| TV Show | 1993 | The John Larroquette Show | Bernard Galvin | 1 |
| TV Show | 2001 | Law & Order: Criminal Intent | Jules Copeland | 1 |
| TV Show | 1961 | The Mike Douglas Show | Self | 1 |
| TV Show | 1957 | The Restless Gun | Jody Gilman | 1 |
| TV Show | 1944 | Golden Globe Awards | Self - Presenter | 1 |
| TV Show | 1964 | The Man from U.N.C.L.E. | Alexander | 2 |
| TV Show | 1964 | 12 O'Clock High | Col. Mark Royce | 1 |
| TV Show | 1956 | Tony Awards | Self - Presenter | 2 |
| TV Show | 1959 | Rawhide | Jacob Yellow-Sun | 1 |
| TV Show | 1959 | The Untouchables | Harry Strauss | 1 |
| TV Show | 1959 | The Untouchables | Johnny Mizo | 1 |
| TV Show | 1947 | Kraft Television Theatre | Somers | 1 |
| TV Show | 1947 | Kraft Television Theatre | | 3 |
