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

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

The real reason Mark Harmon made the shocking decision to quit NCIS has been revealed. The 73-year-old actor played special ...

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

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.' ...

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

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 ...

CBS's police procedural drama NCIS has had many memorable characters who have contributed to the show over the years.

NCIS: Origins has been a valiant effort to reinvent the NCIS franchise through the lens of a young Leroy Jethro Gibbs, but ...

But 13 years ago, he played the guy who was taking lives in a three-episode arc on NCIS. In the series ... and he has this moment with Mark Harmon where he’s like, ‘You got to get out ...