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Mark Harmon

Mark Harmon

Acting

September 2, 1951 (74 years old)
Burbank, California, USA
Male
49 Movies
60 TV Shows

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.

NCIS
NCIS

NCIS

2003 7.6

as Leroy Jethro Gibbs

Age 52 (now 74)
435 eps
NCIS
NCIS

NCIS

2003 7.6

Executive Producer

Age 52 (now 74)
33 eps
NCIS: New Orleans
NCIS: New Orleans

NCIS: New Orleans

2014 7.3

Executive Producer

Age 63 (now 74)
139 eps
Justice League: Crisis on Two Earths
Justice League: Crisis on Two Earths

Justice League: Crisis on Two Earths

2010 7.3

as Superman (voice)

Age 58 (now 74)
Freaky Friday
Freaky Friday

Freaky Friday

2003 6.6

as Ryan

Age 51 (now 74)
Summer School
Summer School

Summer School

1987 6.4

as Mr. Freddy Shoop

Age 35 (now 74)
The Presidio
The Presidio

The Presidio

1988 5.8

as Jay Austin

Age 36 (now 74)
Chicago Hope
Chicago Hope

Chicago Hope

1994 7.3

as Jack McNeil

Age 43 (now 74)
96 eps
Freakier Friday
Freakier Friday

Freakier Friday

2025 6.8

as Ryan

Age 73 (now 74)
Fear and Loathing in Las Vegas
Fear and Loathing in Las Vegas

Fear and Loathing in Las Vegas

1998 7.2

as Magazine Reporter

Age 46 (now 74)
St. Elsewhere
St. Elsewhere

St. Elsewhere

1982 5.7

as Robert Caldwell

Age 31 (now 74)
59 eps
Wyatt Earp
Wyatt Earp

Wyatt Earp

1994 6.8

as Sheriff Johnny Behan

Age 42 (now 74)
Stealing Home
Stealing Home

Stealing Home

1988 6.3

as Billy Wyatt

Age 36 (now 74)
NCIS: Origins
NCIS: Origins

NCIS: Origins

2024 7.6

Executive Producer

Age 73 (now 74)
36 eps
Worth Winning
Worth Winning

Worth Winning

1989 5.3

as Taylor Worth

Age 38 (now 74)
Magic in the Water
Magic in the Water

Magic in the Water

1995 5.3

as Jack Black

Age 43 (now 74)