Mark Harmon is coming back as Gibbs through all of Season 3 of "NCIS: Origins." How will that work? "You'll see," Harmon says.

"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 is going to be in every episode of the prequel's third season.

NCIS: Origins has set Mark Harmon to return as Special Agent Leroy Jethro Gibbs for season three.

Leroy Jethro Gibbs may have been retired from MCRT for a while now, but the oldest mystery about the character in NCIS has ...

Amanda M. Castro is a Network TV writer at Collider and a New York–based journalist whose work has appeared in Newsweek, where she is an Associate Editor, and The U.S. Sun, where she previously served ...

Mariel Molino is aware NCIS: Origins fans want Lala and Gibbs to get together — but for now, their romantic relationship is on ice. That being said, Molino said Gibbs has understandably put up walls ...

Mark Harmon is returning to the NCIS-verse on Tuesday to help tell Gibbs' story — but will he share more about his relationship with Lala? In the exclusive first look above, Harmon still appears to be ...