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

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

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.

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

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.” ...