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Mark Harmon, an American actor, producer, and director, rose to prominence through his portrayal of Leroy Jethro Gibbs on NCIS from 2003 to 2021, a role that garnered him six People's Choice Award nominations and an Emmy nod for his role as Secret Service agent Simon Donovan in "The West Wing." Since 2008, he has also produced and executive produced NCIS and its spinoffs, beginning his career in television with a commercial for Kellogg's Product 19 and an episode of "Ozzie's Girls" through familial connections. Harmon's acting career spans over four decades, following his collegiate football career at UCLA. He has been married to actress Pam Dawber since 1987, and their son, Sean Harmon, reprised the Gibbs role on NCIS.
The roles that explain the career.
41 credits across 2 departments.
| Year | Title | Role | Type |
|---|---|---|---|
| 2025 | Freakier Friday | Ryan | Film |
| 2024 | NCIS: Origins | Executive Producer | TV |
| 2022 | Black Tar | Ira Monroe | TV |
| 2018 | All or Nothing: The Michigan Wolverines | Narrator (voice) | TV |
| 2016 | The American West | Self | TV |
| 2011 | Certain Prey | Lucas Davenport | Film |
| 2011 | Certain Prey | Executive Producer | Film |
| 2009 | Weather Girl | Dale | Film |
| 2004 | Chasing Liberty | James Foster | Film |
| 2003 | Freaky Friday | Ryan | Film |
| 2002 | Local Boys | Jim Wesley | Film |
| 2001 | Crossfire Trail | Bruce Barkow | Film |
| 2001 | And Never Let Her Go | Thomas Capano | Film |
| 2000 | For All Time | Charles Lattimer | Film |
| 1999 | I'll Remember April | John Cooper | Film |
| 1998 | Fear and Loathing in Las Vegas | Magazine Reporter | Film |
| 1997 | Casualties | Tommy Nance | Film |
| 1995 | The Last Supper | Dominant Male | Film |
| 1995 | Magic in the Water | Jack Black | Film |
| 1995 | Original Sins | Johnathan Franye | Film |
| 1994 | Chicago Hope | Jack McNeil | TV |
| 1994 | Wyatt Earp | Sheriff Johnny Behan | Film |
| 1992 | Cold Heaven | Alex Davenport | Film |
| 1991 | Reasonable Doubts | Det. Dicky Cobb | TV |
| 1989 | Worth Winning | Taylor Worth | Film |
| 1989 | Sweet Bird of Youth | Chance Wayne | Film |
| 1988 | Stealing Home | Billy Wyatt | Film |
| 1988 | The Presidio | Jay Austin | Film |
| 1987 | Dear America: Letters Home from Vietnam | (voice) | Film |
| 1987 | After the Promise | Elmer Jackson | Film |
| 1987 | Summer School | Mr. Freddy Shoop | Film |
| 1986 | Let's Get Harry | Harry | Film |
| 1986 | Prince of Bel Air | Robin Prince | Film |
| 1986 | The Deliberate Stranger | Ted Bundy | Film |
| 1984 | Tuareg: Desert Warrior | Gacel Sayah | Film |
| 1983 | Intimate Agony | Tommy | Film |
| 1981 | Flamingo Road | Field Carlyle | TV |
| 1981 | Goliath Awaits | Peter Cabot | TV |
| 1979 | Beyond the Poseidon Adventure | Larry Simpson | Film |
| 1978 | Centennial | Captain John McIntosh | TV |
| 1978 | Comes a Horseman | Billy Joe Meynert | Film |
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