Mark Harmon

Mark Harmon

ActingBorn Sep 2, 1951

Burbank, California, USA

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

Filmography

2025Freakier Fridayas Ryanmovie2024NCIS: Originsas Executive Producertv2024NCISverse: The First 1,000as Selfmovie2022Joe Montana: Cool Under Pressureas Self - Narrator (voice)tv2019The Kelly Clarkson Showas Selftv2019The Wildas Selfmovie2018All or Nothing: The Michigan Wolverinesas Narrator (voice)tv2016The American Westas Selftv2015The Late Show with Stephen Colbertas Self - Guesttv2015The Late Late Show with James Cordenas Selftv2014NCIS: New Orleansas Executive Producertv2013The Arsenio Hall Showas Selftv2011Certain Preyas Executive Producermovie2010Justice League: Crisis on Two Earthsas Superman (voice)movie2009Weather Girlas Dalemovie2008The Bonnie Hunt Showas Selftv2006The Megan Mullally Showas Self - Guesttv2004The Tony Danza Showas Selftv2004Chasing Libertyas James Fostermovie2003NCISas Executive Producertv2003Freaky Fridayas Ryanmovie2003Jimmy Kimmel Live!as Selftv2002Local Boysas Jim Wesleymovie2002Intimate Portrait: Pam Dawberas Selfmovie2001The Legend of Tarzanas Bob Markham (voice)tv2001And Never Let Her Goas Thomas Capanomovie2001And Never Let Her Goas Thomas Capanotv2001Crossfire Trailas Bruce Barkowmovie2001The Amati Girlsas Lawrencemovie2000Boston Publicas Directortv2000For All Timeas Charles Lattimermovie1999The West Wingas Simon Donovantv1999I'll Remember Aprilas John Coopermovie1999Family Guyas Leroy Jethro Gibbs (voice)tv1998Fear and Loathing in Las Vegasas Magazine Reportermovie1998From the Earth to the Moonas Wally Schirratv1997The Viewas Selftv1997Casualtiesas Tommy Nancemovie1997The First to Goas Jeremy Hamptonmovie1996The Rosie O'Donnell Showas Selftv1995JAGas Leroy Jethro Gibbstv1995Charlie Graceas Producertv1995The Last Supperas Dominant Malemovie1995Magic in the Wateras Jack Blackmovie1995Original Sinsas Johnathan Franyemovie1994Chicago Hopeas Directortv1994Natural Born Killersas Mickey Knox in TVmovie1994Wyatt Earpas Sheriff Johnny Behanmovie1993Harts of the Westtv1992Cold Heavenas Alex Davenportmovie1992The Tonight Show with Jay Lenotv1991Reasonable Doubtsas Det. Dicky Cobbtv1991Till There Was Youas Frank Flynnmovie1991Shadow of a Doubtas Charles Spencermovie1991Long Road Homeas Ertie Robertsonmovie1991Fourth Storyas David Shepardmovie1991Dillingeras John Dillingermovie1989Worth Winningas Taylor Worthmovie1989Sweet Bird of Youthas Chance Waynemovie1988Stealing Homeas Billy Wyattmovie1988The Presidioas Jay Austinmovie1987After the Promiseas Elmer Jacksonmovie1987Dear America: Letters Home from Vietnamas (voice)movie1987Summer Schoolas Mr. Freddy Shoopmovie1986Let's Get Harryas Harrymovie1986The Deliberate Strangeras Ted Bundymovie1986The Deliberate Strangeras Ted Bundytv1986Prince of Bel Airas Robin Princemovie1985Moonlightingas Sam Crawfordtv1984Tuareg: Desert Warrioras Gacel Sayahmovie1983Intimate Agonyas Tommymovie1982St. Elsewhereas Robert Caldwelltv1981Goliath Awaitsas Peter Cabottv1981Entertainment Tonightas Selftv1981Flamingo Roadas Field Carlyletv1980Flamingo Roadas Fielding Carlylemovie1980The Dream Merchantsas Johnny Edgetv1979240-Robertas Thib Thibideauxtv1979Beyond the Poseidon Adventureas Larry Simpsonmovie1978Comes a Horsemanas Billy Joe Meynertmovie