Filmography
| Year | Title | Role |
| 1999 | Inherit the Wind (1999) | Matthew Harrison Brady |
| 1997 | 12 Angry Men (1997) | Juror 3 |
| 1995 | Angus | Grandpa Ivan |
| 1993 | Malice (1993) | Dr. Martin Kessler |
| 1991 | Finding the Way Home | Max Mittelmann |
| 1990 | The Rescuers Down Under | McLeah |
| 1990 | The Exorcist III | Kinderman |
| 1989 | The Ryan White Story | Dr. Kleiman |
| 1984 | Firestarter (1984) | John Rainbird |
| 1981 | Taps | General Harlan Bache |
| 1980 | The Changeling (1980) | John Russell |
| 1979 | Hardcore | Jake VanDorn |
| 1978 | Movie Movie | Gloves Malloy/Spats Baxter |
| 1978 | Crossed Swords | Ruffler |
| 1977 | Islands in the Stream | Thomas Hudson |
| 1976 | Beauty and the Beast (1976) | The Beast |
| 1975 | The Hindenburg | Ritter |
| 1975 | Fear on Trial | Louis Nizer |
| 1974 | Bank Shot | Walter Upjohn Ballentine |
| 1974 | The Savage Is Loose | John |
| 1973 | The Day of the Dolphin (1973) | Dr. Jake Terrell |
| 1972 | The New Centurions | Kilvinski |
| 1972 | Rage | Dan Logan |
| 1971 | The Hospital | Dr. Herbert Bock |
| 1971 | They Might Be Giants | Justin Playfair |
| 1971 | The Last Run | Harry Garmes |
| 1970 | Patton | Gen. George S. Patton Jr. |
| 1968 | Petulia | Dr. Archie Bollen |
| 1966 | The Bible | Abraham |
| 1966 | Not With My Wife, You Don't! | Tank Martin |
| 1964 | Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb (1964) | Gen. "Buck" Turgidson |
| 1963 | The List of Adrian Messenger | Anthony Gethryn |
| 1961 | The Hustler (1961) | Bert Gordon |
| 1959 | Anatomy of a Murder | Asst. State Atty. Gen. Claude Dancer |
| 1959 | The Hanging Tree | Dr. George Grubb |
