Mark Harmon played Leroy Jethro Gibbs for 19 seasons on 'NCIS.' The CBS franchise announced Mark will be a guest on the 'NCIS ...

Mark Harmon is returning to the NCISverse in a somewhat unexpected way. “Legends on legends on legends,” an Instagram post ...

Origins" brought us the return of the older Gibbs -- and a new canine friend, which leads to one burning question.

Mark Harmon is shedding a little light on going from being the lead on NCIS to working more behind the scenes on NCIS: ...

Harmon was last seen onscreen as Gibbs on the prequel.

Life in Alaska: Harmon says Gibbs is comfortable living alone in Alaska, now with occasional company from a dog, reflecting his preference for solitude. Podcast appearance: Harmon discussed Gibbs’ ...

Former NCIS star Mark Harmon recently reflected on the beginnings of the show and his late friend and co-star David McCallum.

As much as we would love to see Mark Harmon return to NCIS, the actor is happy with his life the way it is now. It’s not like he’s completely left the franchise either, offering the voiceover for NCIS ...

NCIS star Mark Harmon recently opened up about a chance call that led to his big break into acting. In a clip from Mark’s appearance on The Fifth Column podcast posted to YouTube on April 16, Harmon ...

NCIS has seen a lot of deaths over its 23-season run, but there's one that absolutely rocked a cast member back in the day ...

KUTV — From the New York Times bestselling authors of Ghosts of Honolulu and Ghosts of Panama, comes their most harrowing true story yet. Mark Harmon and Special Agent Leon Carroll Jr. joined Fresh ...