Mark Harmon
- Known for
- Acting
- Born
- September 2, 1951 (age 75)
- Birthplace
- 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
Photos
Filmography
Freakier Friday
Movie · as Ryan
NCISverse: The First 1,000
Movie · as Self
NCIS: Origins
TV · as Older Leroy Jethro Gibbs (voice) (uncredited) · 36 eps
Joe Montana: Cool Under Pressure
TV · as Self - Narrator (voice) · 6 eps
The Wild
Movie · as Self
The Kelly Clarkson Show
TV · as Self · 1 ep
All or Nothing: The Michigan Wolverines
TV · as Narrator (voice) · 8 eps
The American West
TV · as Self · 8 eps
The Late Late Show with James Corden
TV · as Self · 1 ep
The Late Show with Stephen Colbert
TV · as Self - Guest · 1 ep
NCIS: New Orleans
TV · as Leroy Jethro Gibbs · 4 eps
The Arsenio Hall Show
TV · as Self · 1 ep
Steve Harvey
TV · as Self · 1 ep
Certain Prey
Movie · as Lucas Davenport
Justice League: Crisis on Two Earths
Movie · as Superman (voice)
Weather Girl
Movie · as Dale
The Bonnie Hunt Show
TV · as Self · 1 ep
Stand Up to Cancer
TV · as Self · 1 ep
The Megan Mullally Show
TV · as Self - Guest · 1 ep
Chasing Liberty
Movie · as James Foster
The Tony Danza Show
TV · as Self · 1 ep
Freaky Friday
Movie · as Ryan
Jimmy Kimmel Live!
TV · as Self · 1 ep
NCIS
TV · as Leroy Jethro Gibbs · 435 eps
Local Boys
Movie · as Jim Wesley
Intimate Portrait: Pam Dawber
Movie · as Self
Crossfire Trail
Movie · as Bruce Barkow
And Never Let Her Go
Movie · as Thomas Capano
The Amati Girls
Movie · as Lawrence
The Legend of Tarzan
TV · as Bob Markham (voice) · 1 ep
And Never Let Her Go
TV · as Thomas Capano · 2 eps
For All Time
Movie · as Charles Lattimer
I'll Remember April
Movie · as John Cooper
The West Wing
TV · as Simon Donovan · 4 eps
Family Guy
TV · as Leroy Jethro Gibbs (voice) · 1 ep
Fear and Loathing in Las Vegas
Movie · as Magazine Reporter
From the Earth to the Moon
TV · as Wally Schirra · 1 ep
Casualties
Movie · as Tommy Nance
The First to Go
Movie · as Jeremy Hampton
The View
TV · as Self · 1 ep
The Rosie O'Donnell Show
TV · as Self · 1 ep
Strangers
TV · as Mark · 1 ep
Original Sins
Movie · as Johnathan Franye
Magic in the Water
Movie · as Jack Black
The Last Supper
Movie · as Dominant Male
JAG
TV · as Leroy Jethro Gibbs · 2 eps
Charlie Grace
TV · as Charlie Grace · 9 eps
Wyatt Earp
Movie · as Sheriff Johnny Behan
Natural Born Killers
Movie · as Mickey Knox in TV
Chicago Hope
TV · as Jack McNeil · 96 eps
Harts of the West
TV · 1 ep
Cold Heaven
Movie · as Alex Davenport
The Tonight Show with Jay Leno
TV · 1 ep
Shadow of a Doubt
Movie · as Charles Spencer
Dillinger
Movie · as John Dillinger
Long Road Home
Movie · as Ertie Robertson
Till There Was You
Movie · as Frank Flynn
Fourth Story
Movie · as David Shepard
Reasonable Doubts
TV · as Det. Dicky Cobb · 44 eps
Worth Winning
Movie · as Taylor Worth
Sweet Bird of Youth
Movie · as Chance Wayne
The Presidio
Movie · as Jay Austin
Stealing Home
Movie · as Billy Wyatt
Summer School
Movie · as Freddy Shoop
Dear America: Letters Home from Vietnam
Movie · as (voice)
After the Promise
Movie · as Elmer Jackson
The Deliberate Stranger
Movie · as Ted Bundy
Prince of Bel Air
Movie · as Robin Prince
Let's Get Harry
Movie · as Harry
The Deliberate Stranger
TV · as Ted Bundy · 2 eps
Moonlighting
TV · as Sam Crawford · 4 eps
Tuareg: Desert Warrior
Movie · as Gacel Sayah
Intimate Agony
Movie · as Tommy
St. Elsewhere
TV · as Robert Caldwell · 59 eps
Flamingo Road
TV · as Field Carlyle · 37 eps
Goliath Awaits
TV · as Peter Cabot · 2 eps
Entertainment Tonight
TV · as Self · 1 ep
Flamingo Road
Movie · as Fielding Carlyle
The Dream Merchants
TV · as Johnny Edge · 3 eps
Beyond the Poseidon Adventure
Movie · as Larry Simpson
240-Robert
TV · as Thib Thibideaux · 13 eps
Getting Married
Movie · as Howie Lesser
Comes a Horseman
Movie · as Billy Joe Meynert
Little Mo
Movie · as Norman Brinker
Centennial
TV · as Captain John McIntosh · 12 eps
Sam
TV · as Mike Breen · 6 eps
Eleanor and Franklin: The White House Years
Movie · as Robert Dunlap
The Love Boat
TV · as Doug Bradbury · 3 eps
The Hardy Boys / Nancy Drew Mysteries
TV · 1 ep
Laverne & Shirley
TV · as Victor
All's Fair
TV · 1 ep
Delvecchio
TV · as Ronnie Striker · 1 ep
Saturday Night Live
TV · as Self - Host · 1 ep
Sonic Boom
Movie · as Student Controller
Police Woman
TV · as Stanski, Paul Donin · 1 ep
Ozzie's Girls
TV · 1 ep
Emergency!
TV · as Ofcr. Dave Gordon · 1 ep
Adam-12
TV · as Officer Gus Corbin · 1 ep
The Tonight Show Starring Johnny Carson
TV · as Self · 1 ep
Hallmark Hall of Fame
TV · as Charles · 1 ep
Golden Globe Awards
TV · as Self - Nominee · 3 eps