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Mark Harmon

Mark Harmon
Mark Harmon, American actor and producer

Thomas Mark Harmon is an American actor and former football player. He is perhaps best known for playing the lead role of Leroy Jethro Gibbs on NCIS. He has appeared in a wide variety of television roles since the early 1970s, including Dr. Robert Caldwell on St. Elsewhere, Detective Dicky Cobb on Reasonable Doubts, and Dr. Jack McNeil on Chicago Hope. He also starred in such films as Summer School, Prince of Bel Air, Stealing Home, Wyatt Earp, Fear and Loathing in Las Vegas, Freaky Friday, and Chasing Liberty.

2 September 1951

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Born on the same birth date (2 September 1951): Jim DeMint • Mik Kaminski

Born on the same birth day (2 September): Aziz Zakari • Charles Vintcent • Deimantas Petravičius • Esteban Echeverría • Jyrki Otila • Kristin Halvorsen • Liliʻuokalani • Michael Rother • Milo Hamilton • Peter Ueberroth • Tony Alva

Born in the same month (September 1951): Chrissie Hynde • David Coverdale • Douglas Kmiec • Jim DeMint • Melih Kibar • Michael Keaton • Norm Dubé • Paul Breitner • Pete Carroll • Pier Luigi Bersani • Ray Gravell • Tom Gullikson • Tony Scott (baseball)