Acting
Mark Harmon
EN, IT cinema · 48 credits
Born
2 September 1951 (age 75)
Birthplace
Burbank, California, USA
Also known as Thomas Mark Harmon
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
as Ryan
The Wild
as Self
Certain Prey
as Lucas Davenport, Executive Producer
Justice League: Crisis on Two Earths
as Superman (voice)
Weather Girl
as Dale
Chasing Liberty
as James Foster
Freaky Friday
as Ryan
Local Boys
as Jim Wesley
Crossfire Trail
as Bruce Barkow
And Never Let Her Go
as Thomas Capano
The Amati Girls
as Lawrence
For All Time
as Charles Lattimer
I'll Remember April
as John Cooper
Fear and Loathing in Las Vegas
as Magazine Reporter
Casualties
as Tommy Nance
The First to Go
as Jeremy Hampton
Original Sins
as Johnathan Franye
Magic in the Water
as Jack Black
The Last Supper
as Dominant Male
Wyatt Earp
as Sheriff Johnny Behan
Natural Born Killers
as Mickey Knox in TV
Cold Heaven
as Alex Davenport
Shadow of a Doubt
1991
Shadow of a Doubt
as Charles Spencer
Dillinger
as John Dillinger
Long Road Home
as Ertie Robertson
Till There Was You
as Frank Flynn
Fourth Story
as David Shepard
Worth Winning
as Taylor Worth
Sweet Bird of Youth
as Chance Wayne
The Presidio
as Jay Austin
Stealing Home
as Billy Wyatt
Summer School
as Freddy Shoop
After the Promise
as Elmer Jackson
The Deliberate Stranger
as Ted Bundy
Prince of Bel Air
as Robin Prince
Let's Get Harry
as Harry
Tuareg: Desert Warrior
as Gacel Sayah
Intimate Agony
as Tommy
Flamingo Road
as Fielding Carlyle
Beyond the Poseidon Adventure
as Larry Simpson
Getting Married
as Howie Lesser
Comes a Horseman
as Billy Joe Meynert
Little Mo
as Norman Brinker
Eleanor and Franklin: The White House Years
1977
Eleanor and Franklin: The White House Years
as Robert Dunlap
Sonic Boom
as Student Controller