Thomas Mark Harmon (born September 2, 1951) is an American actor, writer, producer, television director and former football player. He is best known for playing the lead role of Leroy Jethro …

Mark Harmon. Actor: NCIS. Thomas Mark Harmon was born on September 2, 1951, in Burbank, California, to football player and broadcaster Tom Harmon and actress and artist Elyse Knox …

Jan 14, 2025 · Mark Harmon, born on September 2, 1951, is a celebrated actor, best known for his role in the hit series NCIS. He has had a distinguished career in television and film.

Aug 25, 2025 · Actor Mark Harmon played Leroy Jethro Gibbs on NCIS for 19 seasons. The former CBS star became a first-time grandfather earlier in 2025.

See Mark Harmon full list of movies and tv shows from their career. Find where to watch Mark Harmon's latest movies and tv shows.

Explore the complete filmography of Mark Harmon on Rotten Tomatoes! Discover every movie and TV show they have been credited in.

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 …

Born Thomas Mark Harmon on September 2, 1951 in Burbank, California, he was the son of college football great Tom Harmon and his wife, actress Elyse Knox, and for a time, it …

Oct 16, 2024 · Mark Harmon doesn't ascribe to the world of celebrity. A Hollywood heavyweight, the actor, 73, prefers to keep a low profile in California. Notoriously humble, and extremely …

Sep 14, 2022 · Born in California in 1951, Mark Harmon is best known for playing a doctor on the long-running show St. Elsewhere, as well as for his roles on Chicago Hope and NCIS …