The prequel follows Gibbs' early days at NIS.

"NCIS" legend Mark Harmon is bringing his OG Leroy Jethro Gibbs character to the prequel series "NCIS: Origins," and he's not coming alone. Harmon, 74, will make a rare guest appearance on "Origins" ...

Mark Harmon will reprise the role of Leroy Jethro Gibbs in an upcoming episode of “NCIS: Origins.” Harmon, who played Gibbs for 18 seasons on “NCIS,” is the narrator of “NCIS: Origins,” but a ...

Time for another check-in with older Gibbs. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. How Origins Got Mark Harmon On Board For His Big ...

The following contains spoilers for NCIS: Origins Season 2, Episode 4, "No Man Left Behind," which aired on Tuesday, November 4, on CBS. NCIS: Origins just proved that it shouldn't have canceled its ...

The following contains spoilers for NCIS Season 23, Episode 4, “Gone Girls,” which aired on Tuesday, November 4, on CBS. Created over Mark Harmon’s nearly two decades on NCIS and continued by Austin ...

Marisa is a Senior News Author for Collider. She graduated from Western Kentucky University in 2018 after majoring in Creative Writing with a minor in Folk Studies. She grew up in Kentucky and ...

Ahead of the "NCIS" and "NCIS: Origins" crossover event on Nov. 11, 2025, fans had one question in mind: Would Mark Harmon's Gibbs share a scene with present-day Lala? Heading into the episode, all we ...

Interviews Gibbs And Jimmy Never Got A Proper Goodbye When Mark Harmon Left NCIS. Brian Dietzen Told Me How The Characters Should Reunite Interviews NCIS's Origins Crossover Was A Treat For Gibbs Fans ...

Sparks are flying in the "NCIS: Origins" fall finale — literally and figuratively. First off, Gibbs and Diane break up early in the episode after Diane accepts a job in Los Angeles because long ...