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