Mark Harmon

Mark Harmon

Acting
Born 1951-09-02Burbank, California, USA

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 2 sons. His son, actor Sean Harmon, had a recurring role as a young Leeroy Jethro Gibbs on NCIS.

Movies (48)

Fear and Loathing in Las Vegas
7.2

Fear and Loathing in Las Vegas

1998Movie7.2
Freaky Friday
6.6

Freaky Friday

2003Movie6.6
Freakier Friday
6.8

Freakier Friday

2025Movie6.8
Natural Born Killers
7.1

Natural Born Killers

1994Movie7.1
The Presidio
5.8

The Presidio

1988Movie5.8
Wyatt Earp
6.8

Wyatt Earp

1994Movie6.8
Justice League: Crisis on Two Earths
7.3

Justice League: Crisis on Two Earths

2010Movie7.3
Dear America: Letters Home from Vietnam
7.1

Dear America: Letters Home from Vietnam

1987Movie7.1
The Last Supper
6.5

The Last Supper

1995Movie6.5
Summer School
6.4

Summer School

1987Movie6.4
Chasing Liberty
6.2

Chasing Liberty

2004Movie6.2
Flamingo Road
10.0

Flamingo Road

1980Movie10.0
Little Mo
7.3

Little Mo

1978Movie7.3
Beyond the Poseidon Adventure
5.0

Beyond the Poseidon Adventure

1979Movie5.0
After the Promise
7.5

After the Promise

1987Movie7.5
Weather Girl
5.6

Weather Girl

2009Movie5.6
Let's Get Harry
6.2

Let's Get Harry

1986Movie6.2
The Deliberate Stranger
6.3

The Deliberate Stranger

1986Movie6.3
Comes a Horseman
6.1

Comes a Horseman

1978Movie6.1
Crossfire Trail
6.4

Crossfire Trail

2001Movie6.4
Magic in the Water
5.3

Magic in the Water

1995Movie5.3
Stealing Home
6.3

Stealing Home

1988Movie6.3
Cold Heaven
4.3

Cold Heaven

1992Movie4.3
Eleanor and Franklin: The White House Years
4.9

Eleanor and Franklin: The White House Years

1977Movie4.9
Prince of Bel Air
5.0

Prince of Bel Air

1986Movie5.0
Local Boys
6.4

Local Boys

2002Movie6.4
Getting Married
6.0

Getting Married

1978Movie6.0
Intimate Agony
5.0

Intimate Agony

1983Movie5.0
NCISverse: The First 1,000
9.0

NCISverse: The First 1,000

2024Movie9.0
And Never Let Her Go
6.7

And Never Let Her Go

2001Movie6.7
Original Sins
4.0

Original Sins

1995Movie4.0
Certain Prey
4.9

Certain Prey

2011Movie4.9
For All Time
6.4

For All Time

2000Movie6.4
The Amati Girls
4.7

The Amati Girls

2001Movie4.7
The Wild
7.0

The Wild

2019Movie7.0
Worth Winning
5.3

Worth Winning

1989Movie5.3
Casualties
6.8

Casualties

1997Movie6.8
Fourth Story
5.4

Fourth Story

1991Movie5.4
Tuareg: Desert Warrior
5.3

Tuareg: Desert Warrior

1984Movie5.3
Intimate Portrait: Pam Dawber
8.0

Intimate Portrait: Pam Dawber

2002Movie8.0
Shadow of a Doubt
6.0

Shadow of a Doubt

1991Movie6.0
The First to Go
10.0

The First to Go

1997Movie10.0
Dillinger
5.6

Dillinger

1991Movie5.6
Sweet Bird of Youth
5.5

Sweet Bird of Youth

1989Movie5.5
Long Road Home
6.5

Long Road Home

1991Movie6.5
Sonic Boom
5.6

Sonic Boom

1974Movie5.6
Till There Was You
4.0

Till There Was You

1991Movie4.0
I'll Remember April
6.6

I'll Remember April

1999Movie6.6

TV Shows (52)

The Late Show with Stephen Colbert
6.1

The Late Show with Stephen Colbert

2015Series6.1
NCIS
7.6

NCIS

2003Series7.6
Family Guy
7.4

Family Guy

1999Series7.4
The Tonight Show Starring Johnny Carson
7.5

The Tonight Show Starring Johnny Carson

1962Series7.5
The Kelly Clarkson Show
6.3

The Kelly Clarkson Show

2019Series6.3
Saturday Night Live
6.9

Saturday Night Live

1975Series6.9
The Late Late Show with James Corden
5.1

The Late Late Show with James Corden

2015Series5.1
The West Wing
8.3

The West Wing

1999Series8.3
JAG
7.3

JAG

1995Series7.3
Jimmy Kimmel Live!
5.3

Jimmy Kimmel Live!

2003Series5.3
The Love Boat
6.3

The Love Boat

1977Series6.3
The View
4.3

The View

1997Series4.3
NCIS: New Orleans
7.3

NCIS: New Orleans

2014Series7.3
Chicago Hope
7.2

Chicago Hope

1994Series7.2
The Tonight Show with Jay Leno
5.4

The Tonight Show with Jay Leno

1992Series5.4
Golden Globe Awards
7.0

Golden Globe Awards

1944Series7.0
Steve Harvey
7.0

Steve Harvey

2012Series7.0
Adam-12
7.1

Adam-12

1968Series7.1
Emergency!
8.0

Emergency!

1972Series8.0
St. Elsewhere
5.7

St. Elsewhere

1982Series5.7
Moonlighting
7.5

Moonlighting

1985Series7.5
NCIS: Origins
7.6

NCIS: Origins

2024Series7.6
Police Woman
6.4

Police Woman

1974Series6.4
The Tony Danza Show
6.4

The Tony Danza Show

2004Series6.4
From the Earth to the Moon
8.1

From the Earth to the Moon

1998Series8.1
The Legend of Tarzan
7.0

The Legend of Tarzan

2001Series7.0
The Bonnie Hunt Show
4.4

The Bonnie Hunt Show

2008Series4.4
Laverne & Shirley
7.1

Laverne & Shirley

1976Series7.1
The Hardy Boys / Nancy Drew Mysteries
7.1

The Hardy Boys / Nancy Drew Mysteries

1977Series7.1
The Megan Mullally Show
4.7

The Megan Mullally Show

2006Series4.7
Reasonable Doubts
7.6

Reasonable Doubts

1991Series7.6
Strangers
4.3

Strangers

1996Series4.3
The Arsenio Hall Show
5.7

The Arsenio Hall Show

2013Series5.7
Entertainment Tonight
4.3

Entertainment Tonight

1981Series4.3
Centennial
7.7

Centennial

1978Series7.7
Flamingo Road
6.3

Flamingo Road

1981Series6.3
The Rosie O'Donnell Show
4.1

The Rosie O'Donnell Show

1996Series4.1
Delvecchio
7.0

Delvecchio

1976Series7.0
Goliath Awaits
6.9

Goliath Awaits

1981Series6.9
Charlie Grace
8.0

Charlie Grace

1995Series8.0
240-Robert
7.4

240-Robert

1979Series7.4
Harts of the West
6.8

Harts of the West

1993Series6.8
The Dream Merchants
5.7

The Dream Merchants

1980Series5.7
All's Fair
7.7

All's Fair

1976Series7.7
The Deliberate Stranger
7.0

The Deliberate Stranger

1986Series7.0
The American West
6.7

The American West

2016Series6.7
Hallmark Hall of Fame
8.8

Hallmark Hall of Fame

1951Series8.8
Ozzie's Girls
6.8

Ozzie's Girls

1973Series6.8
Joe Montana: Cool Under Pressure
8.6

Joe Montana: Cool Under Pressure

2022Series8.6
Sam
7.0

Sam

1978Series7.0
And Never Let Her Go
7.0

And Never Let Her Go

2001Series7.0
All or Nothing: The Michigan Wolverines
7.5

All or Nothing: The Michigan Wolverines

2018Series7.5