John Mahoney
- Compleanno:
- 06/20/1940
- Luogo di nascita:
- Blackpool, Lancashire, England, UK:
 | The Giant's Dream: The Making of the Iron Giant (2016) Self |
 | Flipped (2010) Chet Duncan |
 | Dan in Real Life (2007) Poppy |
 | The Groomsmen (2006) Paulie's Dad (uncredited) |
 | Moonstruck: At the Heart of an Italian Family (2006) Self |
 | Kronk's New Groove (2005) Papi (voice) |
 | Fathers and Sons (2005) Gene |
 | Frasier: Analyzing the Laughter (2004) Martin Crane |
 | Atlantis: Milo's Return (2003) Whitmore (voice) |
 | Atlantis: The Lost Empire (2001) Preston B. Whitmore (voice) |
 | Almost Salinas (2001) Max Harris |
 | Intimate Enemies (2000) Narrator (voice) |
 | The Broken Hearts Club: A Romantic Comedy (2000) Jack |
 | The Iron Giant (1999) General Rogard (voice) |
 | The Making of 'The Iron Giant' (1999) Self |
 | Antz (1998) Grebs (Drunk Scout) (voice) |
 | Star Trek: 30 Years and Beyond (1996) Martin Crane |
 | She's the One (1996) Mr. Fitzpatrick |
| | Mariette in Ecstasy (1996) Dr. Claude Baptiste |
 | Primal Fear (1996) Shaughnessy |
 | The American President (1995) Leo Solomon |
 | The Hudsucker Proxy (1994) Chief |
 | Reality Bites (1994) Grant Gubler |
| | A Hard Rain (1994) Ross Stewart |
 | Striking Distance (1993) Lt. Vince Hardy |
 | In the Line of Fire (1993) Sam Campagna |
 | Buying a Landslide (1992) Walter Partin |
 | The Water Engine (1992) Mason Gross |
 | The Secret Passion of Robert Clayton (1992) Robert Clayton Sr. |
 | Article 99 (1992) Dr. Henry Dreyfoos |
 | Unnatural Pursuits (1992) Paddy Quinn |
 | Barton Fink (1991) W.P. Mayhew |
| | The 10 Million Dollar Getaway (1991) Jimmy Burke |
 | The Russia House (1990) Brady |
 | Love Hurts (1990) Boomer |
 | The Image (1990) Irv Mickelson |
 | Dinner at Eight (1989) Oliver Jordan |
 | Say Anything... (1989) James Court |
 | Eight Men Out (1988) Kid Gleason |
 | Betrayed (1988) Shorty |
 | Frantic (1988) Williams |
 | Moonstruck (1987) Perry |
 | Suspect (1987) Judge Matthew Bishop Helms |
 | The House of Blue Leaves (1987) Artie Shaughnessy |
 | The Hustler of Money (1987) Eddie |
 | Tin Men (1987) Moe Adams |
 | The Manhattan Project (1986) Lt. Col. Conroy |
 | Trapped In Silence (1986) Dr. Winslow |
 | Streets of Gold (1986) Linnehan |
 | Code of Silence (1985) Prowler Representative |
 | First Steps (1985) '60 Minutes' Producer |
 | The Impostor (1984) |
| | The Impostor (1984) School Security Guard |
 | The Killing Floor (1984) Thomas Condon |
 | Through Naked Eyes (1983) Police Captain |
 | Will: G. Gordon Liddy (1982) |
 | Hudson Taylor (1981) |