Mark Harmon

Person

Mark Harmon

Born 2 September 1951 74 years old Burbank, California, USA Who else is 74? → TMDB ↗

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.

FR·01

The numbers

Computed from the record
0age in their first credit on record (1951)
74years on screen and counting
6credits in 1991, their busiest year
82dated credits on record
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Movie credits

Newest first
Freakier Friday poster Age: 73

Freakier Friday

2025
as Ryan
Certain Prey poster Age: 60

Certain Prey

2011
as Lucas Davenport
Justice League: Crisis on Two Earths poster Age: 58

Justice League: Crisis on Two Earths

2010
as Superman (voice)
Weather Girl poster Age: 57

Weather Girl

2009
as Dale
Chasing Liberty poster Age: 52

Chasing Liberty

2004
as James Foster
Freaky Friday poster Age: 51

Freaky Friday

2003
as Ryan
Local Boys poster Age: 50

Local Boys

2002
as Jim Wesley
And Never Let Her Go poster Age: 49

And Never Let Her Go

2001
as Thomas Capano
Crossfire Trail poster Age: 49

Crossfire Trail

2001
as Bruce Barkow
The Amati Girls poster Age: 49

The Amati Girls

2001
as Lawrence
For All Time poster Age: 49

For All Time

2000
as Charles Lattimer
I'll Remember April poster Age: 47

I'll Remember April

1999
as John Cooper
Fear and Loathing in Las Vegas poster Age: 46

Fear and Loathing in Las Vegas

1998
as Magazine Reporter
Casualties poster Age: 45

Casualties

1997
as Tommy Nance
The First to Go poster Age: 45

The First to Go

1997
as Jeremy Hampton
The Last Supper poster Age: 44

The Last Supper

1995
as Dominant Male
Magic in the Water poster Age: 43

Magic in the Water

1995
as Jack Black
Original Sins poster Age: 43

Original Sins

1995
as Johnathan Franye
Natural Born Killers poster Age: 42

Natural Born Killers

1994
as Mickey Knox in TV
Wyatt Earp poster Age: 42

Wyatt Earp

1994
as Sheriff Johnny Behan
Cold Heaven poster Age: 40

Cold Heaven

1992
as Alex Davenport
Till There Was You poster Age: 39

Till There Was You

1991
as Frank Flynn
Shadow of a Doubt poster Age: 39

Shadow of a Doubt

1991
as Charles Spencer
Long Road Home poster Age: 39

Long Road Home

1991
as Ertie Robertson
Fourth Story poster Age: 39

Fourth Story

1991
as David Shepard
Dillinger poster Age: 39

Dillinger

1991
as John Dillinger
Worth Winning poster Age: 38

Worth Winning

1989
as Taylor Worth
Sweet Bird of Youth poster Age: 38

Sweet Bird of Youth

1989
as Chance Wayne
Stealing Home poster Age: 36

Stealing Home

1988
as Billy Wyatt
The Presidio poster Age: 36

The Presidio

1988
as Jay Austin
After the Promise poster Age: 36

After the Promise

1987
as Elmer Jackson
Dear America: Letters Home from Vietnam poster Age: 36

Dear America: Letters Home from Vietnam

1987
as (voice)
Summer School poster Age: 35

Summer School

1987
as Mr. Freddy Shoop
Let's Get Harry poster Age: 35

Let's Get Harry

1986
as Harry
The Deliberate Stranger poster Age: 34

The Deliberate Stranger

1986
as Ted Bundy
Prince of Bel Air poster Age: 34

Prince of Bel Air

1986
as Robin Prince
Tuareg: Desert Warrior poster Age: 32

Tuareg: Desert Warrior

1984
as Gacel Sayah
Intimate Agony poster Age: 31

Intimate Agony

1983
as Tommy
Flamingo Road poster Age: 28

Flamingo Road

1980
as Fielding Carlyle
Beyond the Poseidon Adventure poster Age: 27

Beyond the Poseidon Adventure

1979
as Larry Simpson
Comes a Horseman poster Age: 27

Comes a Horseman

1978
as Billy Joe Meynert
Little Mo poster Age: 27

Little Mo

1978
as Norman Brinker
Getting Married poster Age: 26

Getting Married

1978
as Howie Lesser
No poster
Age: 25

Eleanor and Franklin: The White House Years

1977
as Robert Dunlap
Sonic Boom poster Age: 22

Sonic Boom

1974
as Student Controller
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TV credits

Newest first
NCIS: Origins poster Age: 73

NCIS: Origins

2024
as Older Leroy Jethro Gibbs (uncredited)
NCIS: Origins poster Age: 73

NCIS: Origins

2024
as Older Leroy Jethro Gibbs (voice) (uncredited)
All or Nothing: The Michigan Wolverines poster Age: 66

All or Nothing: The Michigan Wolverines

2018
as Narrator (voice)
NCIS: New Orleans poster Age: 63

NCIS: New Orleans

2014
as Leroy Jethro Gibbs
NCIS poster Age: 52

NCIS

2003
as Leroy Jethro Gibbs
The Legend of Tarzan poster Age: 50

The Legend of Tarzan

2001
as Bob Markham (voice)
And Never Let Her Go poster Age: 49

And Never Let Her Go

2001
as Thomas Capano
The West Wing poster Age: 48

The West Wing

1999
as Simon Donovan
Family Guy poster Age: 47

Family Guy

1999
as Leroy Jethro Gibbs (voice)
From the Earth to the Moon poster Age: 46

From the Earth to the Moon

1998
as Wally Schirra
Strangers poster Age: 44

Strangers

1996
as Mark
JAG poster Age: 44

JAG

1995
as Leroy Jethro Gibbs
Charlie Grace poster Age: 44

Charlie Grace

1995
as Charlie Grace
Chicago Hope poster Age: 43

Chicago Hope

1994
as Jack McNeil
Harts of the West poster Age: 42

Harts of the West

1993
The Tonight Show with Jay Leno poster Age: 40

The Tonight Show with Jay Leno

1992
Reasonable Doubts poster Age: 40

Reasonable Doubts

1991
as Det. Dicky Cobb
The Deliberate Stranger poster Age: 34

The Deliberate Stranger

1986
as Ted Bundy
Moonlighting poster Age: 33

Moonlighting

1985
as Sam Crawford
St. Elsewhere poster Age: 31

St. Elsewhere

1982
as Robert Caldwell
Goliath Awaits poster Age: 30

Goliath Awaits

1981
as Peter Cabot
Flamingo Road poster Age: 29

Flamingo Road

1981
as Field Carlyle
The Dream Merchants poster Age: 28

The Dream Merchants

1980
as Johnny Edge
240-Robert poster Age: 27

240-Robert

1979
as Thib Thibideaux
Centennial poster Age: 27

Centennial

1978
as Captain John McIntosh
Sam poster Age: 26

Sam

1978
as Mike Breen
The Love Boat poster Age: 26

The Love Boat

1977
as Doug Bradbury
The Hardy Boys / Nancy Drew Mysteries poster Age: 25

The Hardy Boys / Nancy Drew Mysteries

1977
All's Fair poster Age: 25

All's Fair

1976
Delvecchio poster Age: 25

Delvecchio

1976
as Ronnie Striker
Laverne & Shirley poster Age: 24

Laverne & Shirley

1976
Police Woman poster Age: 23

Police Woman

1974
as Stanski
Police Woman poster Age: 23

Police Woman

1974
as Paul Donin
No poster
Age: 22

Ozzie's Girls

1973
Emergency! poster Age: 20

Emergency!

1972
as Ofcr. Dave Gordon
Adam-12 poster Age: 17

Adam-12

1968
as Officer Gus Corbin
Hallmark Hall of Fame poster Age: 0

Hallmark Hall of Fame

1951
as Charles
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