The 73-year-old actor played special agent Leroy Jethro Gibbs on the hit CBS show for almost 20 years before leaving in 2021 ...

Along with the late David McCallum, Mark Harmon is arguably the actor who's most commonly associated with the "NCIS" ...

Throughout Mark Harmon ’s run on the first 19 seasons of NCIS, the show would occasionally throw out a Gibbs Rule. Those are ...

The dramatic clash between creative control and business interests that nearly derailed NCIS’ spinoff success.

NCIS creator Don Bellisario's fiery "volatile" reputation sparked behind-the-scenes drama, with directors acknowledging his intense personality.

You know these stars as members of the Naval Criminal Investigative Service, who spend their time investigating crimes ...

Rule 4 — “The best way to keep a secret: Keep it to yourself. Second best: Tell one person—if you must. There is no third ...

David Osmond spoke with "NCIS" Star Mark Harmon and real-life retired NCIS Special Agent Leon Carroll Jr. about their latest ...

NCIS found a loophole for Harmon to return ... While there could be a lot of pressure, Mark Harmon makes us feel so comfortable and he makes us feel justified in our decisions.” ...

NCIS is flatlining in the ratings, and after CBS canceled some of the spinoffs, there's a good chance it will end soon.

I did three episodes, I don't even know how long ago, and I might get stopped for that in airports as much as anything else.' ...

NCIS is a procedural drama that follows a team of investigators in the U.S. Navy and Marine Corps. Here's where you can watch ...