Mark Harmon

Acting

Born September 2, 1951 · Burbank, California, USA

2 films as director · Active 1994–2000

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 si…

Known for

Family Guy

1999

NCIS

2003

The Late Show with Stephen Colbert

2015

The Tonight Show Starring Johnny Carson

1962

The Kelly Clarkson Show

2019

Saturday Night Live

1975

The View

1997

The Late Late Show with James Corden

2015

Directed(2)

No films found.

Acting(100)

2025Freakier FridayRyan

Film

2024NCIS: OriginsOlder Leroy Jethro Gibbs (voice) (uncredited)

2024NCISverse: The First 1,000Self

Film