Mark Harmon, who played Leroy Jethro Gibbs on NCIS, talked about the early premise for NCIS, which was real cases.

Despite a potentially lucrative offer in hand, Mark Harmon opted to pen what he wanted with his writing debut.

Monday's episode of NCIS served as lead star Mark Harmon's final moments on the show as he is exiting the hit CBS series after portraying Gibbs for 18 seasons. During episode four of season 19 ...

Mark Harmon and Pam Dawber have been married since ... The sitcom ran for 95 episodes from 1978 to 1982. After the show ended, Dawber appeared in several made-for-TV movies before landing another ...

Freakier Friday first look: Lindsay Lohan, Jamie Lee Curtis scream over body-swapping, guitars, Chad Michael Murray's 'sexy' return Mark Harmon knew Austin Stowell would play young Leroy Gibbs at ...

Monica Schipper/GA/The Hollywood Reporter via Getty ; Bryan Bedder/Variety via Getty Amanda Pacheco and Wilmer Valderrama; Maria Bello and Dominique Crenn.