Mark Harmon
Acting
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.
Known For
Family Guy
NCIS
The Tonight Show Starring Johnny Carson
The Late Show with Stephen Colbert
The Kelly Clarkson Show
Saturday Night Live
The View
The Late Late Show with James Corden
Jimmy Kimmel Live!
JAG
The West Wing
The Tonight Show with Jay Leno
The Love Boat
Chicago Hope
NCIS: New Orleans
St. Elsewhere
Moonlighting
Laverne & Shirley
NCIS: Origins
NCIS: Origins
From the Earth to the Moon
The Legend of Tarzan
Freakier Friday
Freaky Friday
Natural Born Killers
Fear and Loathing in Las Vegas
Wyatt Earp
Justice League: Crisis on Two Earths
Weather Girl
The Presidio
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