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

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

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

NCIS showrunner Don Bellisario was initially hesitant to cast Mark Harmon as Leroy Jethro Gibbs, but was eventually convinced ...

CBS quietly ignores a potential NCIS spinoff featuring a character with deep history with Mark Harmon's Gibbs, leaving fans puzzled and curious.

resulting in Mark Harmon and Sean Murray being excellently lit as the episode was winding down. After the case they’d been working on wrapped up, Gibbs informed McGee that he’d decided to stay ...

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 ...

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

A nice side-effect of Harmon’s narration is that it helps with Stowell’s own performance as Gibbs. “When we do the table read, Mark is there. But I read the [narration] lines because it help ...

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 ...

“I would say that at this point, this pertains more to Gibbs than to me, that I’ve got some very trusty voices in my head right now — one of them being Mark Harmon, who’s been a sage to me ...

And so when Austin Stowell, who plays the young Gibbs, came into TV Insider’s office during the first half of the season, we had to find out whether some of those rules more so apply to him or ...