Why Mark Harmon Is Returning To Play Gibbs For The NCIS: Origins Crossover Event

Fans will finally be able to see Mark Harmon's grand return to the part of Leroy Jethro Gibbs in an ambitious crossover ...

‘NCIS’ Legend Mark Harmon Sets Guest Star Appearance for ‘Origins’ Crossover Event

"NCIS: Origins" will catch up with present-day Leroy Jethro Gibbs as part of its big crossover with the flagship series in ...

Mark Harmon Sets ‘NCIS’-Verse Return With ‘Origins’ Guest Spot

Mark Harmon is making an on-screen return to the NCIS universe. Harmon will guest star in an episode of NCIS: Origins on Nov.

Mark Harmon to make rare 'NCIS: Origins' appearance and Gibbs is 'no longer alone'

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

‘NCIS: Origins’: Inside Mark Harmon’s Emotional Ducky Moment in David McCallum Tribute

“He always had a way of knowing who I was meant to be.” So says Mark Harmon in the emotional voiceover that caps off the NCIS: Origins serving as a tribute to the late David McCallum, with Adam ...