Jack Duffy
- Anniversaire:
- 09/27/1926
- Lieu de naissance:
- Montreal, Quebec, Canada:
 | Come Again in Spring (2007) Hark (Voice) |
 | It's a Boy Girl Thing (2006) Old Man |
 | The Tuxedo (2002) Elderly Man |
 | Bleacher Bums (2001) Oldest Father |
 | My Horrible Year! (2001) Mr. Birdwell |
 | Spreading Ground (2000) Owen Rafferty |
 | A Holiday Romance (1999) Irwin |
 | Men with Guns (1998) Jimmy |
 | Hostage for a Day (1994) SWAT #3 |
 | David's Mother (1994) Doorman |
 | The Dream Team (1989) Bernie |
 | Biographies: The Enigma of Bobby Bittman (1988) Sam Slansky |
 | Switching Channels (1988) Emil, the Waiter |
 | Killer Party (1986) Security Guard |
 | Boo! (1980) Dr. Frankenstein |
 | The Silent Partner (1978) Fogelman |
 | Hamburgers (1974) self |
