What Mark Harmon is doing now after NCIS has been a subject of discussion among his fans. Read on to discover his new projects since leaving NCIS.

Mark Harmon continues his collaboration with former special agent Leon Carroll Jr. in their groundbreaking NCIS book series!

"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" ...

Harmon, who played Gibbs for 18 seasons on “NCIS,” is the narrator of “NCIS: Origins,” but a Veteran’s Day crossover event will mark his first on-screen appearance since the prequel series’ 2024 pilot ...

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," ...

Mark Harmon’s narration about Ducky As with every episode, Mark Harmon provides the opening and closing narration, and it’s the latter that’s especially emotional. The episode reveals just how Ducky ...

NCIS: Origins is getting a major shake-up behind the scenes — co-showrunner Gina Lucita Monreal is leaving the CBS series when Season 2 ends.

[Warning: The below contains MAJOR spoilers for NCIS: Origins Season 2 Episode 3 “The Edge.”] “He always had a way of knowing who I was meant to be.” So says Mark Harmon in the emotional voiceover ...