Harmon, 74, and retired NCIS special agent Leon Carroll Jr. are releasing their upcoming book, Ghosts of Sicily: The True ...

After the success of their first two books, Ghosts of Honolulu and Ghosts of Panama, Harper Select will publish the next ...

We're moments away from having Mark Harmon back on our TV screens—and we finally have a sneak peek of what he's up to. "Mark Harmon is back as Gibbs on #NCISOrigins!" the caption read alongside the ...

Mark Harmon's highly-anticipated return for the NCIS: Origins crossover episode came as a surprise for some viewers following his shocking exit. During the Tuesday, November 11, double feature, Harmon ...

NCIS: Origins ‘ opening scene of the crossover caught up with Gibbs in Alaska, where he had been joined by a dog, before what Austin Stowell, who stars as the character in the ’90s, calls an ...

The upcoming NCIS and NCIS: Origins crossover brings Mark Harmon back onscreen as Leroy Jethro Gibbs, though his presence remains a constant part of the prequel. He serves as an executive producer and ...

“NCIS” legend Mark Harmon is bringing his OG Leroy Jethro Gibbs character to the prequel series “NCIS: Origins,” and he’s not coming alone. Harmon, 74, will make a rare guest appearance on “Origins” ...

Mark Harmon may have left NCIS, but he'll forever be synonymous with Supervisory Special Agent Leroy Jethro Gibbs. "Mark's always been part of the show, Mark's always going to be part of the show," ...

(CBS) - Mark Harmon will make a special guest appearance as Leroy Jethro Gibbs on NCIS: Origins on Nov. 11. Harmon played Gibbs for 18 seasons on NCIS. In the crossover event airing on Veterans Day, ...

Thanks to his role on "NCIS" and others, Mark Harmon is a legit star in his own right. But he also comes from a family of ...

Fans of the CBS drama got a sneak preview of Mark stepping back into Gibbs' shoes on Instagram. Mark spoke about whether he plans to return to the NCIS franchise in a full-time capacity. We're moments ...