Actor
| 1. | Dan in Real Life (2007) | |
| 2. | Kronk's New Groove (2005) as Kronk's Father | |
| 3. | Atlantis: Milo's Return (2003) | |
| 4. | The Broken Hearts Club: A Romantic Comedy (2000) as Jack | |
| 5. | Atlantis: The Lost Empire (1999) | |
| 6. | The Iron Giant (1999) as General Rogard | |
| 7. | Antz (1998) as Various voices (voice) | |
| 8. | Primal Fear (1996) as John Shaughnessy | |
| 9. | She's The One (1996) | |
| 10. | The American President (1995) | |
| 11. | The Hudsucker Proxy (1994) | |
| 12. | Reality Bites (1994) | |
| 13. | Striking Distance (1993) as Lieutenant Vincent Hardy | |
| 14. | In The Line Of Fire (1993) as Secret Service Director Sam Campagna | |
| 15. | Article 99 (1992) | |
| 16. | Barton Fink (1991) | |
| 17. | The Russia House (1990) as Brady | |
| 18. | Say Anything... (1989) as James Court | |
| 19. | Betrayed (1988) | |
| 20. | Frantic (1988) | |
| 21. | Eight Men Out (1988) as Kid Gleason | |
| 22. | Moonstruck (1987) | |
| 23. | Suspect (1987) as Judge Matthew Helms | |
| 24. | Tin Men (1987) | |
| 25. | The Manhattan Project (1986) | |
| 26. | Code Of Silence (1985) |
Most Popular Films with John Mahoney
| 1. | Dan in Real Life | 2007 |
|
| 2. | Antz | 1998 |
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| 3. | Betrayed | 1988 |
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| 4. | The Iron Giant | 1999 |
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| 5. | Article 99 | 1992 |
|
| 6. | Reality Bites | 1994 |
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| 7. | The Hudsucker Proxy | 1994 |
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| 8. | Primal Fear | 1996 |
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| 9. | Say Anything... | 1989 |
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| 10. | Kronk's New Groove | 2005 |
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