Warning: SPOILERS for the NCIS: Origins two-part premiere “Enter Sandman” are ahead!

NCIS: Origins showrunners reveal if Mark Harmon will appear in future episodes following his cameo in the premiere.

Mark Harmon's colourful life and career explored. From his defining role as Leroy Jethro Gibbs in NCIS to his sweet love ...

Austin Stowell plays Leroy Jethro Gibbs, the beloved role created by Mark Harmon on 'NCIS', on CBS' new spin-off drama ...

For over a decade Mark Harmon portrayed the role of Leroy Jethro Gibbs in the hit TV series NCIS. As producers and ...

NCIS' star Mark Harmon has been married to his wife, 'Mork & Mindy' actress Pam Dawber, since 1987. Read all the details on ...

Mark Harmon ... shape," Harmon said. Stowell has drawn on his personal experiences to portray Gibbs' pain. His father died by suicide four years ago. "Loss is something we all deal with and ...

NCIS: ORIGINS premiered this week, and in honor of the show, stars Mark Harmon and Austin Stowell spoke to PEOPLE about their ...

Mark Harmon is taking a step behind the camera for ... Stowell told the outlet: “Loss is something we all deal with and for Gibbs, this is something that has cracked him to his core.” ...

and all of a sudden, you're presented with a badge with your name on it," he first said of working on the iconic Paramount lot. MORE: NCIS alum Mark Harmon marks extra special holiday weekend with ...

For all the confidence that Mark Harmon and other NCIS: Origins producers might have, it's up to nobody but Austin Stowell himself to due justice to his performance in building up Leroy Gibbs ...

Related: NCIS alum Pauley Perrette says she'd never return to acting, 5 years after allegations against costar Mark Harmon "'You always have all of me,'" the actor remembered telling North and ...