Harmon, 74, will make a rare guest appearance on "Origins" as Gibbs, the character he played for 18 "NCIS" seasons, during ...

NCIS: Origins season 2 episode 4 sees Ducky return as a liaison, helping the team uncover a dangerous nerve agent plot while ...

Muse Watson portrays Mike Franks, a retired NCIS Supervisory Special Agent who plays a crucial role in shaping Leroy Jethro ...

Gibbs (Austin Stowell) and Ducky Mallard (Adam Campbell) already have a personal history together, which is why Ducky's called in as a liaison between Gibbs' people at Camp Pendleton and the D.C. NCIS ...

NCIS” legend Mark Harmon is bringing his OG Leroy Jethro Gibbs character to the prequel series “NCIS: Origins,” and he’s not ...

Warning: SPOILERS for the NCIS: Sydney episode “Lost in Translation” are ahead!

There's just one catch to the news that Mark Harmon will finally reprise his iconic Leroy Jethro Gibbs character for a decade ...

Harmon will return in the flesh for a special crossover event on Tuesday, Nov. 11. For one night only, “NCIS” and “NCIS: ...

Mark Harmon is returning to the NCIS universe and he won't be alone! CBS and the beloved actor dropped all the details.

Origins would deliver its own tribute to fan-favorite Donald “Ducky” Mallard, it was hard to know what to expect from this ...

Mark Harmon has confirmed his return to the main NCIS series for an important Leroy Jethro Gibbs-centric episode.