Mark Harmon 1951 74
Mark Harmon 1951 74
Thomas Mark Harmon (born September 2, 1951) is an American actor, producer and director. He is known for playing the lead role of Leroy Jethro Gibbs on NCIS (2003-2021), a role which has earned him six nominations at the People's Choice Awards including a win for Favorite TV Crime Drama Actor in 2017. Since 2008, he has also been a producer and executive producer of the show as well as its' spinoff series NCIS: New Orleans. His character of NCIS special agent Leroy Jethro Gibbs was introduced in a guest starring role in two episodes of JAG, and continued on the spinoff show NCIS.
He had a recurring role as Secret Service special agent Simon Donovan in a four-episode story arc in The West Wing in 2002, for which he received an Emmy Award nomination.
One of his first national TV appearances (other than as an athlete) was in a commercial for Kellogg's Product 19 cereal with his father, Tom Harmon, its longstanding TV spokesman. Thanks to his sister Kristin's in-laws, Ozzie and Harriet Nelson, he landed his first job as an actor in an episode of Ozzie's Girls.
He has been starring in television and film since the mid-1970s, after a career as a collegiate football player with the UCLA Bruins.
He's been married to actress Pam Dawber since 1987 and they have 2 sons. His son, actor Sean Harmon, had a recurring role as a young Leeroy Jethro Gibbs on NCIS.
4.91
Popularity48
Credits6.6
Rating28.8M
Budget85.9M
RevenueActing
Primarily48 Credits
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Credit 48
2025 Freakier Friday as Ryan
2024 NCISverse: The First 1,000 as Self
2019 The Wild as Self
2011 Certain Prey as Lucas Davenport Executive Producer
2010 Justice League: Crisis on Two Earths as Superman (voice)
2009 Weather Girl as Dale
2004 Chasing Liberty as James Foster
2003 Freaky Friday as Ryan
2002 Local Boys as Jim Wesley
2002 Intimate Portrait: Pam Dawber as Self
2001 And Never Let Her Go as Thomas Capano
2001 Crossfire Trail as Bruce Barkow
2001 The Amati Girls as Lawrence
2000 For All Time as Charles Lattimer
1999 I'll Remember April as John Cooper
1998 Fear and Loathing in Las Vegas as Magazine Reporter
1997 Casualties as Tommy Nance
1997 The First to Go as Jeremy Hampton
1995 The Last Supper as Dominant Male
1995 Magic in the Water as Jack Black
1995 Original Sins as Johnathan Franye
1994 Natural Born Killers as Mickey Knox in TV
1994 Wyatt Earp as Sheriff Johnny Behan
1992 Cold Heaven as Alex Davenport
1991 Till There Was You as Frank Flynn
1991 Shadow of a Doubt as Charles Spencer
1991 Long Road Home as Ertie Robertson
1991 Fourth Story as David Shepard
1991 Dillinger as John Dillinger
1989 Worth Winning as Taylor Worth
1989 Sweet Bird of Youth as Chance Wayne
1988 Stealing Home as Billy Wyatt
1988 The Presidio as Jay Austin
1987 After the Promise as Elmer Jackson
1987 Dear America: Letters Home from Vietnam as (voice)
1987 Summer School as Mr. Freddy Shoop
1986 Let's Get Harry as Harry
1986 The Deliberate Stranger as Ted Bundy
1986 Prince of Bel Air as Robin Prince
1984 Tuareg: Desert Warrior as Gacel Sayah
1983 Intimate Agony as Tommy
1980 Flamingo Road as Fielding Carlyle
1979 Beyond the Poseidon Adventure as Larry Simpson
1978 Comes a Horseman as Billy Joe Meynert
1978 Little Mo as Norman Brinker
1978 Getting Married as Howie Lesser
1977 Eleanor and Franklin: The White House Years as Robert Dunlap
1974 Sonic Boom as Student Controller