Mark Harmon's son, Sean, portrayed a younger version of his father's "NCIS" character several times, so why didn't he reprise ...

Mark and Sean Harmon are ready to peel back and reveal everything there is to know about Leroy Jethro Gibbs. The father-son duo are serving as executive producers of NCIS: Origins, the prequel to ...

Mark and Pam's home, according to Home Décor Today, is said to be worth around $15 million today, though was priced at under $1 million when they purchased it in the late 1990s, shortly before he ...

Sean Murray holds an NCIS record even Mark Harmon doesn’t. After 20 years, he calls it a privilege most actors never get to ...

A heartfelt tribute to David McCallum, a surprise return from Michael Weatherly, and why Mark Harmon was missing from NCIS.

Over the years, the show has seen incredible performances from its ensemble cast, including Mark Harmon as Leroy Jethro Gibbs, David McCallum, Pauley Perrette, Michael Weatherly, and Sean Murray.

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