| Movie | 1982 | The Thing | Garry | |
| Movie | 1989 | Music Box | Harry Talbot | |
| Movie | 1988 | The Unbearable Lightness of Being | Chief Surgeon | |
| Movie | 1992 | Housesitter | George Davis | |
| Movie | 1980 | Popeye | The Taxman | |
| Movie | 1986 | The Best of Times | Herbert ("The Colonel") | |
| Movie | 1994 | Trapped in Paradise | Clifford Anderson | |
| Movie | 1983 | The Right Stuff | Lyndon B. Johnson | |
| Movie | 1990 | The Bonfire of the Vanities | Mr. McCoy | |
| Movie | 1994 | Clear and Present Danger | President Bennett | |
| Movie | 1978 | Sergeant Matlovich vs. the U.S. Air Force | Col. Benton | |
| Movie | 1974 | The Terminal Man | Dr. Arthur McPherson | |
| Movie | 1972 | The Great Northfield Minnesota Raid | Manning | |
| Movie | 1968 | Rachel, Rachel | Niall Cameron | |
| Movie | 1968 | Of Mice and Men | Slim | |
| Movie | 1986 | Monster in the Closet | General Franklin Turnbull | |
| Movie | 1993 | Love, Cheat & Steal | Frank Harrington | |
| Movie | 1980 | HealtH | Colonel Cody | |
| Movie | 1956 | The Battle of the River Plate | Swanston - Lookout, HMS Ajax (uncredited) | |
| Movie | 1988 | Far North | Uncle Dane | |
| Movie | 1991 | The Great Pretender | Owen Milner | |
| Movie | 1970 | R.P.M. | Perry Howard | |
| Movie | 1978 | The Gift of Love | William Schuyler | |
| Movie | 1969 | The File on Devlin | John Heywood | |
| Movie | 1985 | Alamo Bay | Wally | |
| Movie | 1986 | Houston: The Legend of Texas | Col. John Allen | |
| Movie | 1990 | Kaleidoscope | Arthur Patterson | |
| Movie | 1971 | The Devil and Miss Sarah | Appleton | |
| Movie | 1979 | Strangers: The Story of a Mother and Daughter | Wally Ball | |
| Movie | 1974 | A Touch of the Poet | Jamie Cregan | |
| Movie | 1991 | Regarding Henry | Charlie Cameron | |
| Movie | 1981 | The White Lions | Vreeland | |
| Movie | 1998 | The Sleep Room | | |
| Movie | 1999 | Cookie's Fortune | Jack Palmer | |
| Movie | 1987 | Desperado | Malloy, Nora's Dad | |
| Movie | 1992 | Majority Rule | Walter Simms | |
| Movie | 1994 | Is There Life Out There? | Grandpa Walter | |
| Movie | 1977 | Exo-Man | Wallace Rogers | |
| Movie | 1974 | Earthquake | Dr. Harvey Johnson | |
| Movie | 1991 | Class Action | Quinn | |
| Movie | 1987 | When the Time Comes | Harold | |
| Movie | 1991 | Babe Ruth | Jacob Ruppert | |
| Movie | 1975 | Forget-Me-Not Lane | Charles Bisley | |
| Movie | N/A | Roger Williams: Founder Of Rhode Island | Roger Williams | |
| Movie | 1979 | Ebony, Ivory and Jade | Ian Cabot | |
| Movie | 1979 | Mrs. R's Daughter | Frank Randell | |
| Movie | 1981 | Jacqueline Bouvier Kennedy | Hugh Auchincloss | |
| Movie | 1996 | The Evening Star | Hector Scott | |
| Movie | 1973 | Showdown | Art Williams | |
| Movie | 1984 | Who Will Love My Children? | Dick Thomas | |
| Movie | 1978 | Tartuffe | Tartuffe | |
| Movie | 1983 | Through Naked Eyes | Patrolman | |
| Movie | 1997 | A Smile Like Yours | Dr. Felber | |
| Movie | 1979 | Promises in the Dark | Dr. Walter McInerny | |
| Movie | 1963 | Art, what is it? Why is it? | Narrator | |
| Movie | 1988 | Necessary Parties | Grampa Mills | |
| Movie | 1977 | Eleanor and Franklin: The White House Years | Harry Hopkins | |
| Movie | 1977 | Mary White | Sir James Barrie | |
| Movie | 1974 | Rex Harrison Presents Stories of Love | Fred | |
| Movie | 1980 | The Long Days of Summer | Josef Kaplan | |
| Movie | 1980 | On the Nickel | Sam | |
| Movie | 2001 | 61* | Ford Frick | |
| Movie | 1990 | A Son's Promise | Paw Paw | |
| Movie | 1982 | A House Divided: Denmark Vessey's Rebellion | Captain Vesey | |
| Movie | 1986 | License to Kill | Howard Webster | |
| Movie | 1992 | Teamster Boss: The Jackie Presser Story | O'Connell | |
| Movie | 1990 | Kojak: Flowers For Matty | Garrett Fitzsimons | |
| Movie | 1976 | The Call of the Wild | Simpson | |
| Movie | 1986 | Lily | John Farnsworth | |
| TV Show | 1986 | L.A. Law | Judge Lawrence O'Neil | 1 |
| TV Show | 1974 | Little House on the Prairie | | 1 |
| TV Show | 1988 | China Beach | | 2 |
| TV Show | 1968 | Hawaii Five-O | Dr. David Forbes | 1 |
| TV Show | 1985 | The Twilight Zone | (segment "The Star") | 1 |
| TV Show | 1955 | Gunsmoke | Joseph Graham | 1 |
| TV Show | 1969 | Room 222 | | 1 |
| TV Show | 2005 | Law & Order: Trial by Jury | Matthew Sherwood | 1 |
| TV Show | 1970 | Night Gallery | Uncle George (segment "Pickman's Model") | 1 |
| TV Show | 1993 | Dr. Quinn, Medicine Woman | Walt Whitman | 1 |
| TV Show | 1951 | Hallmark Hall of Fame | John Heywood | 1 |
| TV Show | 1967 | The High Chaparral | Henry Simmons | 1 |
| TV Show | 1968 | Lancer | | 1 |
| TV Show | 1970 | The Young Rebels | | 1 |
| TV Show | 2000 | Bull | Robert 'The Kaiser' Roberts | 22 |
| TV Show | 1978 | The Word | Henri Aubert | 4 |
| TV Show | 1977 | Code R | Jack Douglas | 1 |
| TV Show | 1993 | Tales of the City | Edgar Halcyon | 5 |
| TV Show | 1988 | The Bourne Identity | David Abbott | 2 |
| TV Show | 1961 | The Defenders | Dr. Leon Elm | 1 |
| TV Show | 1961 | The Defenders | Dr. Finch | 1 |
| TV Show | 1974 | The New Land | | 13 |
| TV Show | 1977 | The Fitzpatricks | | 1 |
| TV Show | 1977 | Logan's Run | Rem | 14 |
| TV Show | 1999 | The West Wing | Talmidge Cregg | 1 |
| TV Show | 1959 | Bonanza | Judge MacIntyre | 1 |
| TV Show | 1974 | The Six Million Dollar Man | Lester Burstyn | 1 |
| TV Show | 1974 | The Six Million Dollar Man | Dr. Martin Davis | 1 |
| TV Show | 1966 | Mission: Impossible | Alex Pierson | 1 |
| TV Show | 1959 | Bonanza | Thatcher | 1 |
| TV Show | 1978 | Dallas | Brooks Oliver | 3 |
| TV Show | 1967 | Ironside | Daniel Keyes | 1 |
| TV Show | 1989 | Cross of Fire | George Oberholtzer | 2 |
| TV Show | 1973 | The Snoop Sisters | Shriver Danforth | 1 |
| TV Show | 1971 | Columbo | Sheldon Hays | 1 |
| TV Show | 1971 | Great Performances | Charles Bisley | 1 |
| TV Show | 1984 | Murder, She Wrote | Tim Carver | 1 |
| TV Show | 1958 | Naked City | Brickwell | 1 |
| TV Show | 1967 | Mannix | Don McGrath | 1 |
| TV Show | 1967 | Ironside | Hartz | 1 |
| TV Show | 1972 | The Waltons | Lester Morgan | 1 |
| TV Show | 1967 | Coronet Blue | The Rector | 1 |
