Donald Bellisario and Mark Harmon allegedly butted heads because the leading actor had become upset over the series creator’s ...

Mark Harmon recently told Kelly Ripa and Mark Consuelos that his first role was for a Kellogg's commercial beside his father, ...

Donald Bellisario's alleged feud with Mark Harmon reportedly contributed to his exit from NCIS after four seasons.

Despite leaving the show to tackle a fresh challenge, Mark Harmon is apparently not against the idea of returning to the main ...

This week’s episode of NCIS revolved around Thomas Butler, who was a captain in the U.S. Navy and now suffering from dementia ...

Along the way, we briefly laid eyes on a young version of a character who would appear in the NCIS mothership’s very first ...

CBS rookie show NCIS: ORIGINS just secured a full-season order. “NCIS: ORIGINS is currently averaging 6.2 million total ...

He can't help himself! As of now, Harmon has only appeared in the first episode of Origins, but he could show up in more, ...

NCIS spin-off NCIS: Origins has had its future confirmed. The prequel series, focusing on a young version of Mark Harmon's Leroy Jethro Gibbs, was initially given a 13-episode order (it's so far aired ...

In a conversation with Mark Harmon the day before the news was released by CBS that NCIS: Origins was getting picked up for ...

The new show from the NCIS Universe is based in 1991, years before Mark Harmon began playing Gibbs on NCIS. Sean Harmon’s idea was to do a prequel show, and he serves as an Executive Producer while ...