Mark Harmon once discussed the likelihood of appearing in a hypothetical series finale for the long-running ‘NCIS’.

Origins, we're gathering everything we know about the series that will give fans a glimpse into how Jethro became the Gibbs we love.

NCIS: Origins has been confirmed to feature an appearance from Mark Harmon as Leroy Jethro Gibbs, with fans set to see the ...

Mark Harmon is finally confirmed to return as Leroy Jethro Gibbs more than three years after his last appearance as the ...

Mark Harmon is making headlines as he will make a surprising return to the NCIS franchise in the upcoming prequel, NCIS: ...

According to TVLine and Deadline, NCIS: Origins co-showrunner David J. North revealed during a panel discussion with ...

CBS announced in January that a sixth spinoff series of the long-running military-police procedural was on its way, and that ...

It was playing the younger version of [Mark Harmon's Leroy Jethro Gibbs]. One was via Zoom, and this audition for suits was actually in person, which I remember being incredibly excited about because ...

Even though Harmon will only serve as his character's narrator, he will actually be making a brief appearance in the two-hour ...

Austin Stowell will take over as a young Leroy Jethro Gibbs in NCIS: Origins, but not before the baton is officially passed.

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