Mark Harmon
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.
Born: 02 September 1951
Played In
Freakier Friday
Ryan
NCIS: Origins
Older Leroy Jethro Gibbs (voice) (uncredited)
NCIS: Origins
Older Leroy Jethro Gibbs (uncredited)
NCISverse: The First 1,000
Self
Joe Montana: Cool Under Pressure
Self - Narrator (voice)
The Kelly Clarkson Show
Self
The Wild
Self
All or Nothing: The Michigan Wolverines
Narrator (voice)
The American West
Self
The Late Show with Stephen Colbert
Self - Guest
The Late Late Show with James Corden
Self
NCIS: New Orleans
Leroy Jethro Gibbs
The Arsenio Hall Show
Self
Certain Prey
Lucas Davenport
Justice League: Crisis on Two Earths
Superman (voice)
Weather Girl
Dale
The Bonnie Hunt Show
Self
The Megan Mullally Show
Self - Guest
The Tony Danza Show
Self
Chasing Liberty
James Foster
NCIS
Leroy Jethro Gibbs
Freaky Friday
Ryan
Jimmy Kimmel Live!
Self
Local Boys
Jim Wesley
Intimate Portrait: Pam Dawber
Self
The Legend of Tarzan
Bob Markham (voice)
And Never Let Her Go
Thomas Capano
And Never Let Her Go
Thomas Capano
Crossfire Trail
Bruce Barkow
The Amati Girls
Lawrence
For All Time
Charles Lattimer
The West Wing
Simon Donovan
I'll Remember April
John Cooper
Family Guy
Leroy Jethro Gibbs (voice)
Fear and Loathing in Las Vegas
Magazine Reporter
From the Earth to the Moon
Wally Schirra
The View
Self
Casualties
Tommy Nance
The First to Go
Jeremy Hampton
The Rosie O'Donnell Show
Self
Strangers
Mark
JAG
Leroy Jethro Gibbs
Charlie Grace
Charlie Grace
The Last Supper
Dominant Male
Magic in the Water
Jack Black
Original Sins
Johnathan Franye
Chicago Hope
Jack McNeil
Natural Born Killers
Mickey Knox in TV
Wyatt Earp
Sheriff Johnny Behan
Harts of the West
Cold Heaven
Alex Davenport
The Tonight Show with Jay Leno
Reasonable Doubts
Det. Dicky Cobb
Till There Was You
Frank Flynn
Shadow of a Doubt
Charles Spencer
Long Road Home
Ertie Robertson
Fourth Story
David Shepard
Dillinger
John Dillinger
Worth Winning
Taylor Worth
Sweet Bird of Youth
Chance Wayne
Stealing Home
Billy Wyatt
The Presidio
Jay Austin
After the Promise
Elmer Jackson
Dear America: Letters Home from Vietnam
(voice)
Summer School
Mr. Freddy Shoop
Let's Get Harry
Harry
The Deliberate Stranger
Ted Bundy
The Deliberate Stranger
Ted Bundy
Prince of Bel Air
Robin Prince
Moonlighting
Sam Crawford
Tuareg: Desert Warrior
Gacel Sayah
Intimate Agony
Tommy
St. Elsewhere
Robert Caldwell
Goliath Awaits
Peter Cabot
Entertainment Tonight
Self
Flamingo Road
Field Carlyle
Flamingo Road
Fielding Carlyle
The Dream Merchants
Johnny Edge
240-Robert
Thib Thibideaux
Beyond the Poseidon Adventure
Larry Simpson
Comes a Horseman
Billy Joe Meynert
Centennial
Captain John McIntosh
Little Mo
Norman Brinker
Getting Married
Howie Lesser
Sam
Mike Breen
The Love Boat
Doug Bradbury
Eleanor and Franklin: The White House Years
Robert Dunlap
The Hardy Boys / Nancy Drew Mysteries
All's Fair
Delvecchio
Ronnie Striker
Laverne & Shirley
Saturday Night Live
Self - Host
Police Woman
Stanski
Police Woman
Paul Donin
Sonic Boom
Student Controller
Ozzie's Girls
Emergency!
Ofcr. Dave Gordon
Adam-12
Officer Gus Corbin
The Tonight Show Starring Johnny Carson
Self
Hallmark Hall of Fame
Charles
Golden Globe Awards
Self - Nominee
Golden Globe Awards
Self