"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" ...

Daddy's home! Mark Harmon, who played Leroy Jethro Gibbs for 19 seasons on "NCIS," will reprise his role in an upcoming Season 2 episode of CBS' prequel series "NCIS: Origins," TVLine has learned.

The following contains spoilers for NCIS: Origins Season 3, Episode 3, “The Edge,” which aired Tuesday, October 28, on CBS. With the disappointing developments for Gibbs (Austin Stowell) and Lala’s ...

“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” ...

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 ...

The following contains spoilers for NCIS: Origins Season 2, Episode 8, “End of the Road,” which aired on Tuesday, December 9, 2025, on CBS. The NCIS franchise added a wild new piece of lore to Leroy ...

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 ...