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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Freaky Friday

as Ryan
Released: 2003-08-05

Mother and daughter bicker over everything -- what Anna wears, whom she likes and what she wants...

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Fear and Loathing in Las Vegas

as Magazine Reporter
Released: 1998-05-19

Raoul Duke and his attorney Dr. Gonzo drive a red convertible across the Mojave desert to Las...

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as Mickey Knox in TV
Released: 1994-08-26

Two victims of traumatized childhoods become lovers and serial murderers irresponsibly glorified...

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See!

Justice League: Crisis on Two Earths

as Clark Kent / Superman (voice)
Released: 2010-02-23

A heroic version of Lex Luthor from an alternate universe appears to recruit the Justice League...

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Wyatt Earp

as Sheriff Johnny Behan
Released: 1994-06-24

From Wichita to Dodge City, to the O.K. Corral in Tombstone, Wyatt Earp is taught that nothing...

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Chasing Liberty

as James Foster
Released: 2004-01-09

The President's daughter, unable to experience life like a normal 18 year-old, escapes from her...

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Crossfire Trail

as Bruce Barkow
Released: 2001-01-21

Rafe Covington is as good as his word, and he's determined to keep his promise to a dying man...

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Summer School

as Mr. Freddy Shoop
Released: 1987-07-22

A high-school gym teacher has big plans for the summer, but is forced to cancel them to teach a...

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The Last Supper

as Dominant Male
Released: 1995-09-08

A group of idealistic, but frustrated, liberals succumb to the temptation of murdering rightwing...

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The Presidio

as Jay Austin
Released: 1988-06-10

Jay Austin is now a civilian police detective. Colonel Caldwell was his commanding officer years...

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Beyond the Poseidon Adventure

as Larry Simpson
Released: 1979-05-18

After "The Poseidon Adventure", in which the ship got flipped over by a tidal wave, the ship...

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Prince of Bel Air

as Robin Prince
Released: 1986-01-20

A free-spirited, womanizing L.A. pool cleaner finds his lifestyle challenged by a new love interest.

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After the Promise

as Elmer Jackson
Released: 1987-10-11

Elmer Jackson is a carpenter in a small Californian town in the 1930s. Struggling to bring up 4...

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Comes a Horseman

as Billy Joe Meynert
Released: 1978-10-25

Ella Connors is a single woman who gets pressured to sell her failing cattle farm to her corrupt...

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Weather Girl

as Dale
Released: 2009-07-10

Succumbing to the stresses of her personal and professional lives, Sylvia, a Seattle morning...

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Stealing Home

as Billy Wyatt
Released: 1988-08-26

Billy Wyatt (Harmon), a former high school and minor-league baseball baseball player receives a...

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Let's Get Harry

as Harry
Released: 1986-10-31

Harry Burck has been kidnapped by South American terrorists, and when the US Government refuses...

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Sweet Bird of Youth

as Chance Wayne
Released: 1989-10-01

Tennessee William’s masterful melodrama about an aging movie star who, appalled by her own image...

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Freakier Friday

as Ryan
Released: 2025-08-06

Years after Tess and Anna endured an identity crisis, Anna now has a daughter of her own and a...

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Dear America: Letters Home from Vietnam

as (voice)
Released: 1987-10-01

Real-life letters written by American soldiers, sailors, airmen, and Marines during the Vietnam...

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Magic in the Water

as Jack Black
Released: 1995-08-30

Radio psychologist Jack Black takes his children Joshua and Ashley on a 'vacation' to a lake in...

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Tuareg: Desert Warrior

as Gacel Sayah
Released: 1984-03-12

In a desolate section of the Sahara once ruled by the French, two thirsty men stumble into the...

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Worth Winning

as Taylor Worth
Released: 1989-10-27

Taylor is a man who has no problems with women. So confident is he that he accepts a challenge...

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For All Time

as Charles Lattimer
Released: 2000-10-18

A man facing middle-age and a failing marriage finds a time slip that can take him back to the...

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Certain Prey

as Lucas Davenport
Released: 2011-11-06

Minneapolis Deputy Police Chief, Lucas Davenport, has to face off against a duo unlike any he's...

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The Deliberate Stranger

as Ted Bundy
Released: 1986-05-04

Based on a true story, this film depicts the life of Ted Bundy, the serial killer. In 1974,...

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Cold Heaven

as Alex Davenport
Released: 1992-05-29

An adulterous woman's faith in God is tested when her husband dies and miraculously comes back...

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I'll Remember April

as John Cooper
Released: 2001-04-05

Four young boys find a shipwrecked Japanese sailor during World War II and struggle with the...

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Sonic Boom

as Student Controller
Released: 1974-01-01

Comedy short about a supersonic jet that lands in a small town and creates hysteria about an...

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Local Boys

as Jim Wesley
Released: 2002-02-23

On Skeet’s twelfth birthday his older brother Randy buys him his first surfboard. Suddenly his...

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And Never Let Her Go

as Thomas Capano
Released: 2001-04-01

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

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Getting Married

as Howie Lesser
Released: 1978-05-17

A man falls madly in love with a pretty newscaster and goes all out to win her heart and her...

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Flamingo Road

as Fielding Carlyle
Released: 1980-05-12

A carnival drifter marries into an aristocratic family and unwillingly takes on a ruthless...

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Dillinger

as John Dillinger
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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Intimate Agony

as Tommy
Released: 1983-03-21

Anthony Geary (General Hospital) stars as a compassionate doctor who must treat an STD outbreak...

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Casualties

as Tommy Nance
Released: 1997-04-15

A woman tormented by an abusive, sadistic husband desperately tries to find her way out of her...

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Shadow of a Doubt

as Charles Spencer
Released: 1991-04-27

Charlie is a young woman who is thrilled that her favorite Uncle Charlie is coming home for...

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Till There Was You

as Frank Flynn
Released: 1991-07-18

Frank Flynn is summonsed from New York by his brother Charlie to Vanuatu. He arrives only to...

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NCISverse: The First 1,000

as Self
Released: 2024-04-08

Kevin Frazier hosts a celebration of the "NCIS" franchise, including exclusive interviews with...

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The First to Go

as Jeremy Hampton
Released: 1997-01-01

A romantic comedy about the first of a tight group of friends to get married.

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The Amati Girls

as Lawrence
Released: 2001-01-09

Four sisters who disagree about everything... except what matters most. Family.

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Fourth Story

as David Shepard
Released: 1991-01-19

Valerie's husband Darryl leaves for work as usual, but never returns. She hires private eye...

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The Wild

as Self
Released: 2019-05-19

Newly into addiction recovery, an urgent threat emerges to spur filmmaker, Mark Titus back to...

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Little Mo

as Norman Brinker
Released: 1978-09-05

Biopic about tennis great Maureen Connolly who, as a teenager, was the first woman to win the...

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Long Road Home

as Ertie Robertson
Released: 1991-02-25

A drama depicting the trials of a family of share croppers.

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Original Sins

as Johnathan Franye
Released: 1995-04-12

On Jonathan Frayne's radio talk show, the guilty call in to reveal their darkest sins. But when...

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NCIS

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

From murder and espionage to terrorism and stolen submarines, a team of special agents...

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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

The Tonight Show Starring Johnny Carson is a talk show hosted by Johnny Carson under The Tonight...

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The Kelly Clarkson Show

as Self
First aired: 2019-09-09

Kelly Clarkson presents the biggest newsmakers and names in film, television and music; as well...

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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 West Wing

as Simon Donovan
First aired: 1999-09-22

The West Wing provides a glimpse into presidential politics in the nation's capital as it tells...

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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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NCIS: New Orleans

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

A drama about the local field office that investigates criminal cases affecting military...

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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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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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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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Chicago Hope

as Jack McNeil
First aired: 1994-09-18

Chicago Hope is an American medical drama television series, created by David E. Kelley. It ran...

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Adam-12

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

Adam-12 is a television police drama that followed two police officers of the Los Angeles Police...

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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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Moonlighting

as Sam Crawford
First aired: 1985-03-03

After being duped and going bankrupt, model Maddie is convinced by David to become a partner in...

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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

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

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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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St. Elsewhere

as Robert Caldwell
First aired: 1982-10-26

St. Elsewhere is an American medical drama television series that originally ran on NBC from...

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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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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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Laverne & Shirley

as uncredited
First aired: 1976-01-27

Laverne & Shirley is an American television sitcom that ran on ABC from January 27, 1976 to May...

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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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Jimmy Kimmel Live!

as uncredited
First aired: 2003-01-26

Jimmy Kimmel Live! is an American late-night talk show, created and hosted by Jimmy Kimmel and...

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The Hardy Boys / Nancy Drew Mysteries

as uncredited
First aired: 1977-01-30

The Hardy Boys/Nancy Drew Mysteries is a television series which aired for three seasons on ABC....

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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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The Tonight Show with Jay Leno

as uncredited
First aired: 1992-05-25

Jay Leno hosts some of the biggest celebrities in the world.

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The Bonnie Hunt Show

as uncredited
First aired: 2008-09-08

The Bonnie Hunt Show is an American syndicated talk show hosted by Bonnie Hunt. It premiered on...

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The Rosie O'Donnell Show

as Self
First aired: 1996-06-10

The Rosie O'Donnell Show was an American daytime television talk show hosted and produced by...

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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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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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Centennial

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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240-Robert

as Thib Thibideaux
First aired: 1979-08-28

240-Robert is an American drama series that ran on ABC from 1979 to 1981. The series title is a...

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Flamingo Road

as uncredited
First aired: 1981-01-06

Flamingo Road is an American prime time soap opera that aired on NBC. It was first seen as a TV...

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Delvecchio

as Ronnie Striker
First aired: 1976-09-09

Delvecchio is an American television series that aired on CBS during the 1976-77 season. It...

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The American West

as Self
First aired: 2016-06-11

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

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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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Charlie Grace

as Charlie Grace
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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All's Fair

as uncredited
First aired: 1976-09-20

All's Fair is an American television situation comedy

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Harts of the West

as uncredited
First aired: 1993-09-25

Harts of the West is an American Western/comedy–drama series starring Beau Bridges and his...

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The Dream Merchants

as Johnny Edge
First aired: 1980-05-12

This star-laden adaptation of Harold Robbins' best-selling 1949 novel about the birth of the...

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The Arsenio Hall Show

as Self
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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Sam

as Mike Breen
First aired: 1978-03-14

Sam is an American crime drama television series that aired on the CBS network from March 14 to...

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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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Joe Montana: Cool Under Pressure

as Narrator (voice)
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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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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