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 ...

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

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

NCIS might have shown a strict Leroy Gibbs while he was on the job and in his relationships with the other special agents ...

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 ...