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

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, ...

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

Mark Harmon has come a very long way from his very first acting jobs. The former NCIS star has been in the business since the ...

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

While Mark Harmon re-immersed himself in the NCIS world recently, his departure from the original series almost tanked the show. Mark, who played Leroy Jethro Gibbs, decided to step down from the show ...

Origins leaving some torn despite their excitement. The actor left the show in season 19 and acts as executive producer ...

For someone who said three years ago he was retiring ... He's still an executive producer, and he's stretching it as far as he can. He can't help himself! As of now, Harmon has only appeared ...

After Mark Harmon left NCIS at the beginning of ... Even though Harmon has a “stepback role” on NCIS: Origins, it’s still been exciting to see him back in the franchise after he had such ...

With NCIS and the CIA working together once more in NCIS Season 22, can they settle their differences like Alden Parker ( ...

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