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

“I think they have laws against that now,” Consuelos added, and Harmon retorted, “Not then!” Related: Mark Harmon and NCIS: ...

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 ...

Mark Harmon may not have much of an acting role in NCIS: ORIGINS, but he is still very much involved. He reflected on his ...

NCIS: Origins is here to give us the story we didn’t know we needed. The iconic Leroy Jethro Gibbs is younger, rougher around the edges, and just starting out in his career.

The entire scope of Mark Harmon’s role in NCIS: Origins is still under mystery. Besides his role as a narrator who gives the ...

Kyle Schmid has fully embraced his role as "hippie cowboy" Mike Franks on NCIS: Origins, thanks to advice from both Mark ...

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

Except, of course, he did help cast it. Related: Mark Harmon on Why Austin Stowell Is the Perfect Young Leroy Jethro Gibbs ...