John O'Leary
- Compleanno:
- 05/05/1926
- Luogo di nascita:
- Newton, Massachusetts, USA:
 | The Fallen (2004) Sal |
 | Soccer Dog: The Movie (1999) Mr. Kremp |
 | Waiting for the Passion (1997) Michael |
 | My Fellow Americans (1996) Ben, Caretaker |
 | Guardian Angel (1994) Clayton |
 | Distant Cousins (1993) Mr. Williams |
 | Majority Rule (1992) Farmer Freyberger |
 | Waxwork II: Lost in Time (1992) Herr Vogel |
 | For the Boys (1991) T.V. Censor, New York |
 | The Haunted (1991) Father Larson |
 | The Haunting of Morella (1990) Quintis |
 | Stepfather 2 (1989) Sam Watkins |
 | A Time of Destiny (1988) Father Basil |
 | Retreads (1988) |
 | Inside Out (1987) Arthur Harris |
 | Stewardess School (1986) Older Man |
 | My Chauffeur (1986) Giles |
 | The Last Starfighter (1984) Rylan Bursar |
 | Confessions of a Married Man (1983) Principal |
 | The Day the Bubble Burst (1982) |
 | Damien: The Leper Priest (1980) Father Leonor |
 | Ghost of a Chance (1980) Minister |
 | Airplane! (1980) Reporter #2 |
 | The Island (1980) Doctor #1 |
 | The Girl, the Gold Watch & Everything (1980) Hibber |
 | Portrait of a Rebel: The Remarkable Mrs. Sanger (1980) Dr. Jessup |
 | Nero Wolfe (1979) Theodore Horstmann |
 | No Other Love (1979) Optician |
 | Moment by Moment (1978) Pharmacist |
 | Lassie: The New Beginning (1978) Jerry Bergan |
 | Heroes (1977) Ticket Clerk |
 | First Love (1977) Waiter (uncredited) |
 | Demon Seed (1977) Royce |
 | All the President's Men (1976) Attorney #1 |
 | Farewell, My Lovely (1975) Marriott |
 | A Moon for the Misbegotten (1975) T. Stedman Harder |
 | The Underground Movie (1972) (voice) |
 | A New Leaf (1971) Desk Clerk (uncredited) |
 | The Heart Is a Lonely Hunter (1968) Beaudine |
 | The Group (1966) Put Blake |