Personal Info
Known For
Acting
Birthdate
1951-09-02 (Age: 75)
Place of Birth
Burbank, California, USA
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 (48)
Freakier Friday
2025
NCISverse: The First 1,000
2024
The Wild
2019
Certain Prey
2011
Justice League: Crisis on Two Earths
2010
Weather Girl
2009
Chasing Liberty
2004
Freaky Friday
2003
Local Boys
2002Intimate Portrait: Pam Dawber
2002
And Never Let Her Go
2001
Crossfire Trail
2001
The Amati Girls
2001
For All Time
2000
