Person · Actor

Mark Harmon

Born

September 2, 1951

From

Burbank, California, USA

Also:
Producer
Director

Credits on file

Decades active

Awards

In short · Acting since 1977, 6 decades active, 60 credits.

Known for

Ranked by community engagement + sustained interest across this person's credits in our database.

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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 two sons. His son, actor Sean Harmon, had a recurring role as a young Leroy Jethro Gibbs on *NCIS*.

Filmography · 54 of 54

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