"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 may have left NCIS, but he'll forever be synonymous with Supervisory Special Agent Leroy Jethro Gibbs. "Mark's always been part of the show, Mark's always going to be part of the show," ...

Four years after leaving the “NCIS” franchise, Mark Harmon is reprising his role as Leroy Jethro Gibbs on an upcoming episode of “NCIS: Origins.” Harmon provides narration for “NCIS: Origins,” which ...

NCIS: Origins ‘ opening scene of the crossover caught up with Gibbs in Alaska, where he had been joined by a dog, before what ...

The original Leroy Jethro Gibbs is about to make a comeback. Mark Harmon is set to reprise the role he played for 18 seasons during the first crossover event between NCIS and NCIS: Origins set for Nov ...

Amanda M. Castro is a Network TV writer at Collider and a journalist based in New York. Born and raised in Puerto Rico, Amanda is a bilingual Latina who graduated from the University of New Haven with ...

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 ...

"NCIS: Origins" has welcomed Mark Harmon back into the NCIS-verse — but when will present-day Gibbs reveal more about his past with Lala? Tuesday's "NCIS" crossover event began with an hour of "NCIS: ...

Mark Harmon played Supervisory Special Agent Leroy Jethro Gibbs for 18 seasons Mark Harmon may have left NCIS, but he'll forever be synonymous with Supervisory Special Agent Leroy Jethro Gibbs. Harmon ...