Skip to content
EN — Language: English
Mark Harmon

Acting

Mark Harmon

Mark Harmon is an actor born on September 2, 1951 in Burbank, California, USA. He is known for Freaky Friday, Freakier Friday and Justice League: Crisis on Two Earths. GloboWatch shows where to watch one of his movies and TV shows, country by country.

Known for
Acting
Born
September 2, 1951
Place of birth
Burbank, California, USA
Also known as
Thomas Mark Harmon

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.

Filmography

  1. 2025Freakier Fridayas Ryan
  2. 2024NCIS: Originsas Older Leroy Jethro Gibbs (voice) (uncredited) · 16 episodes · Executive producer
  3. 2018All or Nothing: The Michigan Wolverinesas Narrator (voice) · 8 episodes
  4. 2016The American Westas Self · 8 episodes
  5. 2014NCIS: New Orleansas Leroy Jethro Gibbs · 4 episodes · Executive producer
  6. 2011Certain Preyas Lucas Davenport · Executive producer
  7. 2010Justice League: Crisis on Two Earthsas Superman (voice)
  8. 2009Weather Girlas Dale
  9. 2004Chasing Libertyas James Foster
  10. 2003NCISas Leroy Jethro Gibbs · 435 episodes · Executive producer
  11. 2003Freaky Fridayas Ryan
  12. 2002Local Boysas Jim Wesley
  13. 2001The Legend of Tarzanas Bob Markham (voice) · 1 episode
  14. 2001And Never Let Her Goas Thomas Capano
  15. 2001Crossfire Trailas Bruce Barkow
  16. 2000Boston PublicDirector
  17. 2000For All Timeas Charles Lattimer
  18. 1999The West Wingas Simon Donovan · 4 episodes
  19. 1999I'll Remember Aprilas John Cooper
  20. 1999Family Guyas Leroy Jethro Gibbs (voice) · 1 episode
  21. 1998Fear and Loathing in Las Vegasas Magazine Reporter
  22. 1998From the Earth to the Moonas Wally Schirra · 1 episode
  23. 1997Casualtiesas Tommy Nance
  24. 1995JAGas Leroy Jethro Gibbs · 2 episodes
  25. 1995The Last Supperas Dominant Male
  26. 1995Magic in the Wateras Jack Black
  27. 1995Original Sinsas Johnathan Franye
  28. 1994Chicago Hopeas Jack McNeil · 96 episodes · Director
  29. 1994Natural Born Killersas Mickey Knox in TV
  30. 1994Wyatt Earpas Sheriff Johnny Behan
  31. 1992Cold Heavenas Alex Davenport
  32. 1991Reasonable Doubtsas Det. Dicky Cobb · 44 episodes
  33. 1991Shadow of a Doubtas Charles Spencer
  34. 1991Fourth Storyas David Shepard
  35. 1989Worth Winningas Taylor Worth
  36. 1989Sweet Bird of Youthas Chance Wayne
  37. 1988Stealing Homeas Billy Wyatt
  38. 1988The Presidioas Jay Austin
  39. 1987After the Promiseas Elmer Jackson
  40. 1987Dear America: Letters Home from Vietnamas (voice)
  41. 1987Summer Schoolas Freddy Shoop
  42. 1986Let's Get Harryas Harry
  43. 1986The Deliberate Strangeras Ted Bundy
  44. 1986Prince of Bel Airas Robin Prince
  45. 1985Moonlightingas Sam Crawford · 4 episodes
  46. 1984Tuareg: Desert Warrioras Gacel Sayah
  47. 1982St. Elsewhereas Robert Caldwell · 59 episodes
  48. 1981Goliath Awaitsas Peter Cabot · 2 episodes
  49. 1981Flamingo Roadas Field Carlyle · 37 episodes
  50. 1979Beyond the Poseidon Adventureas Larry Simpson
  51. 1978Comes a Horsemanas Billy Joe Meynert
  52. 1978Centennialas Captain John McIntosh · 12 episodes
  53. 1977The Love Boatas Doug Bradbury · 3 episodes
  54. 1977Eleanor and Franklin: The White House Yearsas Robert Dunlap
  55. 1977The Hardy Boys / Nancy Drew Mysteries1 episode
  56. 1976Laverne & Shirley1 episode
  57. 1974Police Womanas Stanski · 1 episode
  58. 1972Emergency!as Ofcr. Dave Gordon · 1 episode
  59. 1968Adam-12as Officer Gus Corbin · 1 episode
  60. 1951Hallmark Hall of Fameas Charles · 1 episode