Known For
Acting
Born
Sep 02, 1951
Place of Birth
Burbank, California, USA
Credits
101 titles
Mark Harmon
Biography
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.
Known For
Filmography
Freakier Friday
Ryan
NCIS: Origins
Older Leroy Jethro Gibbs (voice) (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
Steve Harvey
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
Boston Public
Director
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