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

Mark Harmon has officially made his semi-return to the NCIS franchise with NCIS: Origins, a prequel series centering around ...

It was just an unexpected surge of emotion for us both,' co-showrunner Gina Lucita Monreal says of seeing Harmon dressed as ...

Mark Harmon has opened up about casting Austin Stowell as the younger version of Leroy Jethro Gibbs in NCIS: Origins.

Longtime NCIS star Mark Harmon's son Sean Harmon is not reprising his role as young Jethro Gibbs in the new prequel, and the ...

Mark Harmon recalls Gibbs actor Austin Stowell's audition for NCIS: Origins, revealing when he knew the actor would be ...

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

NCIS: Origins has premiered on CBS, and Mark Harmon’s role in the first episode has been revealed. It was previously reported ...

Mark Harmon was at the heart of the NCIS universe and with the drama's return, fans are eager to know more about the veteran actor ...

Mark Harmon was a staple of NCIS for two decades and now Agent Gibbs’ early career is going to be explored in NCIS Origins ...

Harmon, perhaps best known for playing Special Agent Leroy Jethro Gibbs on the CBS drama NCIS for nearly two decades, is ...

Mark Harmon transitions from his iconic role as Leroy Jethro Gibbs to executive producer and narrator of "NCIS: Origins," a ...