Mark Harmon

Mark Harmon

Acting

Born:
1951-09-02
Place of birth:
Burbank, California, USA

Biography

Mark Harmon (born September 2, 1951, in Burbank, California) is an American actor, producer and director. The son of football star Tom Harmon and actress Elyse Knox, he played college football at UCLA before turning to acting in the mid-1970s. He became known for St. Elsewhere and Chicago Hope and starred as Leroy Jethro Gibbs on NCIS from 2003 to 2021, a character introduced on JAG, also serving as a producer of the series. He received an Emmy nomination for his recurring role as Secret Service agent Simon Donovan on The West Wing, and his film work includes Summer School, The Presidio, Wyatt Earp and Freaky Friday.

Known For

Filmography

Freakier Friday

Freakier Friday

6.82025Ryan
Movie
NCIS: Origins

NCIS: Origins

7.52024Older Leroy Jethro Gibbs
TV
NCISverse: The First 1,000

NCISverse: The First 1,000

9.02024Self
Movie
Joe Montana: Cool Under Pressure

Joe Montana: Cool Under Pressure

8.62022Self - Narrator (voice)
TV
The Kelly Clarkson Show

The Kelly Clarkson Show

6.22019Self
TV
The Wild

The Wild

7.02019Self
Movie
All or Nothing: The Michigan Wolverines

All or Nothing: The Michigan Wolverines

7.52018Narrator (voice)
TV
The American West

The American West

6.72016Self
TV
The Late Show with Stephen Colbert

The Late Show with Stephen Colbert

6.12015Self - Guest
TV
The Late Late Show with James Corden

The Late Late Show with James Corden

5.12015Self
TV
NCIS: New Orleans

NCIS: New Orleans

7.32014Leroy Jethro Gibbs
TV
The Arsenio Hall Show

The Arsenio Hall Show

5.72013Self
TV
Steve Harvey

Steve Harvey

7.02012Self
TV
Certain Prey

Certain Prey

4.72011Lucas Davenport
Movie
Justice League: Crisis on Two Earths

Justice League: Crisis on Two Earths

7.32010Superman (voice)
Movie
Weather Girl

Weather Girl

5.62009Dale
Movie
The Bonnie Hunt Show

The Bonnie Hunt Show

4.42008Self
TV
Stand Up to Cancer

Stand Up to Cancer

7.82008Self
TV
The Megan Mullally Show

The Megan Mullally Show

4.72006Self - Guest
TV
The Tony Danza Show

The Tony Danza Show

6.42004Self
TV
Chasing Liberty

Chasing Liberty

6.22004James Foster
Movie
NCIS

NCIS

7.62003Leroy Jethro Gibbs
TV
Freaky Friday

Freaky Friday

6.62003Ryan
Movie
Jimmy Kimmel Live!

Jimmy Kimmel Live!

5.32003Self
TV
Local Boys

Local Boys

6.42002Jim Wesley
Movie
Intimate Portrait: Pam Dawber

Intimate Portrait: Pam Dawber

8.02002Self
Movie
The Legend of Tarzan

The Legend of Tarzan

7.12001Bob Markham (voice)
TV
And Never Let Her Go

And Never Let Her Go

6.72001Thomas Capano
Movie
And Never Let Her Go

And Never Let Her Go

7.02001Thomas Capano
TV
Crossfire Trail

Crossfire Trail

6.42001Bruce Barkow
Movie
The Amati Girls

The Amati Girls

4.72001Lawrence
Movie
Boston Public

Boston Public

7.62000Director
TV
For All Time

For All Time

6.42000Charles Lattimer
Movie
The West Wing

The West Wing

8.31999Simon Donovan
TV
I'll Remember April

I'll Remember April

6.61999John Cooper
Movie
Family Guy

Family Guy

7.41999Leroy Jethro Gibbs (voice)
TV
Fear and Loathing in Las Vegas

Fear and Loathing in Las Vegas

7.21998Magazine Reporter
Movie
From the Earth to the Moon

From the Earth to the Moon

8.11998Wally Schirra
TV
The View

The View

4.31997Self
TV
Casualties

Casualties

6.81997Tommy Nance
Movie
The First to Go

The First to Go

10.01997Jeremy Hampton
Movie
The Rosie O'Donnell Show

The Rosie O'Donnell Show

4.11996Self
TV
Strangers

Strangers

4.21996Mark
TV
JAG

JAG

7.31995Leroy Jethro Gibbs
TV
Charlie Grace

Charlie Grace

8.01995Charlie Grace
TV
The Last Supper

The Last Supper

6.51995Dominant Male
Movie
Magic in the Water

Magic in the Water

5.21995Jack Black
Movie
Original Sins

Original Sins

4.01995Johnathan Franye
Movie
Chicago Hope

Chicago Hope

7.21994Jack McNeil
TV
Natural Born Killers

Natural Born Killers

7.01994Mickey Knox in TV
Movie
Wyatt Earp

Wyatt Earp

6.81994Sheriff Johnny Behan
Movie
Harts of the West

Harts of the West

6.81993
TV
Cold Heaven

Cold Heaven

4.31992Alex Davenport
Movie
The Tonight Show with Jay Leno

The Tonight Show with Jay Leno

5.31992
TV
Reasonable Doubts

Reasonable Doubts

7.61991Det. Dicky Cobb
TV
Till There Was You

Till There Was You

4.01991Frank Flynn
Movie
Shadow of a Doubt

Shadow of a Doubt

6.01991Charles Spencer
Movie
Long Road Home

Long Road Home

6.51991Ertie Robertson
Movie
Fourth Story

Fourth Story

5.41991David Shepard
Movie
Dillinger

Dillinger

5.61991John Dillinger
Movie