MARK HARMON'S BACK! Gibbs Returns for Full Season 3 Arc
The NCIS legend is diving deep into his prequel series—and this time, he's in EVERY episode of the upcoming season.

Hold onto your seats, NCIS fans—Mark Harmon is making a full-time acting return to the small screen! The long-time franchise star will reprise his iconic role as Leroy Jethro Gibbs for a season-long arc in Season 3 of "NCIS: Origins," appearing in every single episode, according to Variety, The Hollywood Reporter, and Deadline.
Harmon, who commanded the original "NCIS" for 18 glorious seasons, is diving into present-day mystery that ties back to his character's '90s Camp Pendleton days. This marks his third appearance on the prequel spinoff, which he also narrates and executive produces behind the scenes.
The move signals a major shift for the actor, who had stepped back from on-camera work in recent years. Now, he's jumping back into the action with both feet—and fans are already counting down the days to see what explosive storyline awaits Gibbs in Season 3!
It's the reunion NCIS devotees never knew they needed. Welcome back, boss!
Sources · Variety · The Hollywood Reporter · Deadline