Actor
| 1. | Weather Girl (2009) | |
| 2. | Chasing Liberty (2004) | |
| 3. | Freaky Friday (2003) as Ryan | |
| 4. | Local Boys (2002) as Jim Wesley | |
| 5. | I'll Remember April (2001) as John Cooper | |
| 6. | Fear and Loathing in Las Vegas (1998) | |
| 7. | The First to Go (1997) | |
| 8. | Magic in the Water (1995) as Jack Black | |
| 9. | The Last Supper (1995) as Dominant Male | |
| 10. | Natural Born Killers (1994) as Mickey Knox in Wayne Gale's Reconstruction | |
| 11. | Wyatt Earp (1994) | |
| 12. | Worth Winning (1989) | |
| 13. | The Presidio (1988) as Jay Austin | |
| 14. | Stealing Home (1988) as Billy Wyatt | |
| 15. | Summer School (1987) as Freddy Shoop | |
| 16. | Beyond the Poseidon Adventure (1979) as Larry Simpson | |
| 17. | Comes a Horseman (1978) | |
| 18. | Comes a Horseman (1978) |
Most Popular Films with Mark Harmon
| 1. | Summer School | 1987 |
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| 2. | Weather Girl | 2009 |
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| 3. | Natural Born Killers | 1994 |
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| 4. | The Last Supper | 1995 |
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| 5. | Fear and Loathing in Las Vegas | 1998 |
|
| 6. | I'll Remember April | 2001 |
|
| 7. | Freaky Friday | 2003 |
|
| 8. | Wyatt Earp | 1994 |
|
| 9. | Worth Winning | 1989 |
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| 10. | Magic in the Water | 1995 |
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