
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.
Frequent co-stars
18
Titles
21

Freakier Friday
Ryan • 2025
סרט
★7/10

All or Nothing: The Michigan Wolverines
Narrator (voice) • 2018
סדרה
★8/10

Certain Prey
Lucas Davenport • 2011
סרט
★5/10

ליגת הצדק: המשבר בשני כוכבי הלכת
Superman (voice) • 2010
סרט
★7/10

חזאית מזג האוויר
Dale • 2009
סרט
★6/10

חופשיה לאהבה
James Foster • 2004
סרט
★6/10

שישי הפוך
Ryan • 2003
סרט
★7/10

Local Boys
Jim Wesley • 2002
סרט
★6/10

Crossfire Trail
Bruce Barkow • 2001
סרט
★6/10

פחד ותיעוב בלאס וגאס
Magazine Reporter • 1998
סרט
★7/10

ארוחת הערב האחרונה
Dominant Male • 1995
סרט
★7/10

צ'יקגו הופ
Jack McNeil • 1994
סדרה
★7/10

וויאט ארפ
Sheriff Johnny Behan • 1994
סרט
★7/10

Worth Winning
Taylor Worth • 1989
סרט
★5/10

Stealing Home
Billy Wyatt • 1988
סרט
★6/10

פרסידיו
Jay Austin • 1988
סרט
★6/10

קיץ
Mr. Freddy Shoop • 1987
סרט
★6/10

The Deliberate Stranger
Ted Bundy • 1986
סרט
★6/10

Let's Get Harry
Harry • 1986
סרט
★6/10

Beyond the Poseidon Adventure
Larry Simpson • 1979
סרט
★5/10

Comes a Horseman
Billy Joe Meynert • 1978
סרט
★6/10
