Mark Harmon

Born: 1951-09-02

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.


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Casualties

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Let's Get Harry

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Dillinger

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Released: 1991-01-06

Crime drama based on the real-life story of US gangster John Dillinger, who was hunted by the...

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Stealing Home

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And Never Let Her Go

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For All Time

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Cold Heaven

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Intimate Agony

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Long Road Home

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Little Mo

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Original Sins

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Flamingo Road

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Intimate Portrait: Pam Dawber

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Released: 2002-01-01

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NCIS

as Leroy Jethro Gibbs
First aired: 2003-09-23

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Family Guy

as Leroy Jethro Gibbs (voice)
First aired: 1999-01-31

Sick, twisted, politically incorrect and Freakin' Sweet animated series featuring the adventures...

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The Tonight Show Starring Johnny Carson

as Self
First aired: 1962-10-01

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The Late Late Show with James Corden

as Self
First aired: 2015-03-23

Once Craig Ferguson retires, James Corden will be taking over The Late Late Show. The show is a...

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Saturday Night Live

as Self - Host
First aired: 1975-10-11

A late-night live television sketch comedy and variety show created by Lorne Michaels. The...

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JAG

as Leroy Jethro Gibbs
First aired: 1995-09-23

Harmon "Harm" Rabb Jr. is a former pilot turned lawyer working for the military's JAG (Judge...

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The Kelly Clarkson Show

as Self
First aired: 2019-09-09

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The West Wing

as Simon Donovan
First aired: 1999-09-22

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The Love Boat

as Doug Bradbury
First aired: 1977-09-24

Passengers who search for romantic nights aboard a beautiful ship travelling to tropical or...

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The View

as Self
First aired: 1997-08-11

ABC Daytime's morning chatfest, currently featuring Whoopi Goldberg, Joy Behar, Sunny Hostin,...

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St. Elsewhere

as Robert Caldwell
First aired: 1982-10-26

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NCIS: Origins

as Older Leroy Jethro Gibbs (uncredited)
First aired: 2024-10-14

In 1991, years prior to the events of NCIS, Leroy Jethro Gibbs starts his career as a newly...

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NCIS: Origins

as Older Leroy Jethro Gibbs (voice) (uncredited)
First aired: 2024-10-14

In 1991, years prior to the events of NCIS, Leroy Jethro Gibbs starts his career as a newly...

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Adam-12

as Officer Gus Corbin
First aired: 1968-09-21

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Moonlighting

as Sam Crawford
First aired: 1985-03-03

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NCIS: New Orleans

as Leroy Jethro Gibbs
First aired: 2014-09-23

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Chicago Hope

as Jack McNeil
First aired: 1994-09-18

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Jimmy Kimmel Live!

as uncredited
First aired: 2003-01-26

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Emergency!

as uncredited
First aired: 1972-01-22

The crew of Los Angeles County Fire Department Station 51, particularly the paramedic team, and...

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The Tonight Show with Jay Leno

as uncredited
First aired: 1992-05-25

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The Bonnie Hunt Show

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First aired: 2008-09-08

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The Hardy Boys / Nancy Drew Mysteries

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First aired: 1977-01-30

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Golden Globe Awards

as Self - Nominee
First aired: 1944-01-20

An annual awards ceremony recognizing excellence in film and television, both domestic and...

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Golden Globe Awards

as Self
First aired: 1944-01-20

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Police Woman

as uncredited
First aired: 1974-09-13

Sergeant “Pepper"” Anderson, an undercover cop for the Criminal Conspiracy Unit of the Los...

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Police Woman

as Stanski
First aired: 1974-09-13

Sergeant “Pepper"” Anderson, an undercover cop for the Criminal Conspiracy Unit of the Los...

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The Legend of Tarzan

as Bob Markham (voice)
First aired: 2001-09-03

The Legend of Tarzan picks up where the 1999 feature film left off, with the title character...

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Laverne & Shirley

as uncredited
First aired: 1976-01-27

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Entertainment Tonight

as Self
First aired: 1981-09-15

Daily tabloid television news show on entertainment and celebrity news with unprecedented access...

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The Megan Mullally Show

as Self - Guest
First aired: 2006-09-18

Two-time Emmy Award-winner Megan Mullally, coming off eight seasons as wisecracking socialite...

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From the Earth to the Moon

as Wally Schirra
First aired: 1998-04-05

The story of the United States' space program, from its beginnings in 1961 to the final moon...

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Flamingo Road

as uncredited
First aired: 1981-01-06

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as Captain John McIntosh
First aired: 1978-10-01

The economic and cultural growth of town of Centennial, Colorado, through the intertwining lives...

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Reasonable Doubts

as Det. Dicky Cobb
First aired: 1991-09-26

A police drama about the working relationship between Assistant DA Tess Kaufman, a prosecutor...

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Charlie Grace

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First aired: 1995-09-14

Charlie Grace is a Los Angeles private eye with a daughter named Jenny, works along with other...

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Harts of the West

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First aired: 1993-09-25

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The Rosie O'Donnell Show

as Self
First aired: 1996-06-10

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240-Robert

as Thib Thibideaux
First aired: 1979-08-28

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All's Fair

as uncredited
First aired: 1976-09-20

All's Fair is an American television situation comedy

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The Arsenio Hall Show

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First aired: 2013-09-09

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Hallmark Hall of Fame

as Charles
First aired: 1951-12-24

Hallmark Hall of Fame is an anthology program on American television, sponsored by Hallmark...

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Goliath Awaits

as Peter Cabot
First aired: 1981-11-11

During World War II the passenger liner "Goliath" is sunk by a German submarine. Portions of the...

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Delvecchio

as Ronnie Striker
First aired: 1976-09-09

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The American West

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First aired: 2016-06-11

From the Executive Producer Robert Redford, THE AMERICAN WEST tells the story of the aftermath...

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And Never Let Her Go

as Thomas Capano
First aired: 2001-04-01

The true story of a woman's suspicious disappearance after ending an affair with a powerful,...

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The Dream Merchants

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All or Nothing: The Michigan Wolverines

as Narrator (voice)
First aired: 2018-04-06

All or Nothing: The Michigan Wolverines goes behind-the-scenes of the winningest program in...

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Sam

as Mike Breen
First aired: 1978-03-14

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Joe Montana: Cool Under Pressure

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First aired: 2022-01-06

Montana's first hand account of his career from the earliest days to national champion at Notre...

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