Name
Mark Harmon
Known For
Acting
Birthday
1951-09-02 (75 years old)
Place of Birth
Burbank, California, USA
Biography
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.
Known For
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Mother and daughter bicker over everything -- what Anna wears, whom she likes and what she...
7.202
Raoul Duke and his attorney Dr. Gonzo drive a red convertible across the Mojave desert to ...
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Years after Tess and Anna endured an identity crisis, Anna now has a daughter of her own a...
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Two victims of traumatized childhoods become lovers and serial murderers irresponsibly glo...
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From Wichita to Dodge City, to the O.K. Corral in Tombstone, Wyatt Earp is taught that not...
7.306
A heroic version of Lex Luthor from an alternate universe appears to recruit the Justice L...
6.396
A high-school gym teacher has big plans for the summer, but is forced to cancel them to te...
6.218
The President's daughter, unable to experience life like a normal 18 year-old, escapes fro...
5
After "The Poseidon Adventure", in which the ship got flipped over by a tidal wave, the sh...
- 1978 Getting Married as Howie Lesser
- 1998 Fear and Loathing in Las Vegas as Magazine Reporter
- 2003 Freaky Friday as Ryan
- 1995 Original Sins as Johnathan Franye
- 2010 Justice League: Crisis on Two Earths as Superman (voice)
- 1979 Beyond the Poseidon Adventure as Larry Simpson
- 1988 The Presidio as Jay Austin
- 1995 Magic in the Water as Jack Black
- 1994 Wyatt Earp as Sheriff Johnny Behan
- 1989 Worth Winning as Taylor Worth
- 1988 Stealing Home as Billy Wyatt
- 1995 The Last Supper as Dominant Male
- 2001 Crossfire Trail as Bruce Barkow
- 1978 Comes a Horseman as Billy Joe Meynert
- 1987 Summer School as Freddy Shoop
- 1987 Dear America: Letters Home from Vietnam as (voice)
- 2002 Local Boys as Jim Wesley
- 2009 Weather Girl as Dale
- 1989 Sweet Bird of Youth as Chance Wayne
- 1986 The Deliberate Stranger as Ted Bundy
- 1987 After the Promise as Elmer Jackson
- 2011 Certain Prey as Lucas Davenport
- 1984 Tuareg: Desert Warrior as Gacel Sayah
- 2001 And Never Let Her Go as Thomas Capano
- 1992 Cold Heaven as Alex Davenport
- 1986 Prince of Bel Air as Robin Prince
- 2000 For All Time as Charles Lattimer
- 1983 Intimate Agony as Tommy
- 1991 Shadow of a Doubt as Charles Spencer
- 1991 Dillinger as John Dillinger
- 1977 Eleanor and Franklin: The White House Years as Robert Dunlap
- 1991 Long Road Home as Ertie Robertson
- 1997 Casualties as Tommy Nance
- 1991 Till There Was You as Frank Flynn
- 1986 Let's Get Harry as Harry
- 1980 Flamingo Road as Fielding Carlyle
- 1991 Fourth Story as David Shepard
- 1978 Little Mo as Norman Brinker
- 2024 NCISverse: The First 1,000 as Self
- 2025 Freakier Friday as Ryan
- 1994 Natural Born Killers as Mickey Knox in TV
- 1997 The First to Go as Jeremy Hampton
- 1974 Sonic Boom as Student Controller
- 2019 The Wild as Self
- 1999 I'll Remember April as John Cooper
- 2004 Chasing Liberty as James Foster
- 2001 The Amati Girls as Lawrence
- 2002 Intimate Portrait: Pam Dawber as Self
- 1982 St. Elsewhere ( 59 episodes ) as Robert Caldwell
- 2004 The Tony Danza Show ( 1 episode ) as Self
- 2003 Jimmy Kimmel Live! ( 1 episode ) as Self
- 1996 The Rosie O'Donnell Show ( 1 episode ) as Self
- 1977 The Love Boat ( 3 episodes ) as Doug Bradbury
- 2001 The Legend of Tarzan ( 1 episode ) as Bob Markham (voice)
- 1985 Moonlighting ( 4 episodes ) as Sam Crawford
- 1981 Flamingo Road ( 37 episodes ) as Field Carlyle
- 1997 The View ( 1 episode ) as Self
- 1979 240-Robert ( 13 episodes ) as Thib Thibideaux
- 1992 The Tonight Show with Jay Leno ( 1 episode )
- 1977 The Hardy Boys / Nancy Drew Mysteries ( 1 episode )
- 1998 From the Earth to the Moon ( 1 episode ) as Wally Schirra
- 1976 Laverne & Shirley ( 1 episode )
- 1976 All's Fair ( 1 episode )
- 2003 NCIS ( 435 episodes ) as Leroy Jethro Gibbs
- 1995 JAG ( 2 episodes ) as Leroy Jethro Gibbs
- 1978 Centennial ( 12 episodes ) as Captain John McIntosh
- 1951 Hallmark Hall of Fame ( 1 episode ) as Charles
- 1994 Chicago Hope ( 96 episodes ) as Jack McNeil
- 1991 Reasonable Doubts ( 44 episodes ) as Det. Dicky Cobb
- 1978 Sam ( 6 episodes ) as Mike Breen
- 1993 Harts of the West ( 1 episode )
- 1995 Charlie Grace ( 9 episodes ) as Charlie Grace
- 1973 Ozzie's Girls ( 1 episode )
- 1980 The Dream Merchants ( 3 episodes ) as Johnny Edge
- 1975 Saturday Night Live ( 1 episode ) as Self - Host
- 2008 The Bonnie Hunt Show ( 1 episode ) as Self
- 1999 The West Wing ( 4 episodes ) as Simon Donovan
- 2015 The Late Late Show with James Corden ( 1 episode ) as Self
- 1968 Adam-12 ( 1 episode ) as Officer Gus Corbin
- 1981 Goliath Awaits ( 2 episodes ) as Peter Cabot
- 2016 The American West ( 8 episodes ) as Self
- 1974 Police Woman ( 1 episode ) as Stanski
- 2019 The Kelly Clarkson Show ( 1 episode ) as Self
- 1962 The Tonight Show Starring Johnny Carson ( 1 episode ) as Self
- 2018 All or Nothing: The Michigan Wolverines ( 8 episodes ) as Narrator (voice)
- 2014 NCIS: New Orleans ( 4 episodes ) as Leroy Jethro Gibbs
- 2013 The Arsenio Hall Show ( 1 episode ) as Self
- 1981 Entertainment Tonight ( 1 episode ) as Self
- 1976 Delvecchio ( 1 episode ) as Ronnie Striker
- 1999 Family Guy ( 1 episode ) as Leroy Jethro Gibbs (voice)
- 2001 And Never Let Her Go ( 2 episodes ) as Thomas Capano
- 2022 Joe Montana: Cool Under Pressure ( 6 episodes ) as Self - Narrator (voice)
- 2006 The Megan Mullally Show ( 1 episode ) as Self - Guest
- 1944 Golden Globe Awards ( 3 episodes ) as Self - Nominee
- 2024 NCIS: Origins ( 16 episodes ) as Older Leroy Jethro Gibbs (voice) (uncredited)
- 1944 Golden Globe Awards ( 1 episode ) as Self
- 1972 Emergency! ( 1 episode ) as Ofcr. Dave Gordon
- 1974 Police Woman ( 1 episode ) as Paul Donin
- 1986 The Deliberate Stranger ( 2 episodes ) as Ted Bundy
- 2024 NCIS: Origins ( 1 episode ) as Older Leroy Jethro Gibbs (uncredited)
- 2015 The Late Show with Stephen Colbert ( 1 episode ) as Self - Guest
- 1996 Strangers ( 1 episode ) as Mark
- 2012 Steve Harvey ( 1 episode ) as Self
- 2024 NCIS: Origins ( 1 episode ) as Leroy Jethro Gibbs
