Season 4 of NCIS could have been the end of the road for Mark Harmon, the beloved actor who plays Leroy Jethro Gibbs. Despite ...

Before Mark met and fell for Pam in the mid '80s, he had worked on a huge property transformation. According to the NCIS star ...

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

Mark Harmon and Sean Murray's heartfelt farewell scene in NCIS Season 19 will forever resonate with fans as the end of an era ...

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

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 ...

Gary Cole joined the long-running CBS drama NCIS in Season 19 as Alden Parker. He stepped into a tough role, replacing Leroy ...

The actor explains how Alden Parker’s passion for pastries makes for an exciting murder mystery on this week's episode of the ...

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

“My wife believed we all should have a code to live by, a set of rules,” Mark Harmon says in a voiceover on NCIS: Origins. “And I believed in her. So for years, I wrote my own rules down on ...