Origins, follows a younger version of Leroy Jethro Gibbs. Recently, the series co-showrunner elaborated on the role Mark Harmon, Gibbs’ original actor, will play. NCIS’s upcoming sixth installment,

Origins and the royal treatment from bosses, which has stars from the original series steamed and blasting the T.V. veteran for stealing their thunder. “Bosses have been waiting a long time to get Mark back in front of the camera and they’re making a big

It’s not supposed to be about old Leroy Gibbs — this is about his younger self coming up in the Naval Criminal Investigative Service — but Mark Harmon will appear in the premiere episode of NCIS: Origins.

Origins explain Mark Harmon's involvement in the prequel series. The premiere of the CBS series is mere weeks away, focusing on a younger version of Leroy Jethro Gibbs (played by Austin Stowell) in the early 1990s.

I t was confirmed last month that Mark Harmon would indeed have a physical presence in the upcoming prequel NCIS: Origins. Now we're learning more about what that presence will en