A fter Mark Harmon left NCIS at the beginning of Season 19, the actor finally returned to the franchise for the prequel ...

Mark Harmon made his anticipated comeback on NCIS: Origins as Leroy Jethro Gibbs. The actor left NCIS at the beginning of ...

Mark Harmon ... NCIS fans already knew Mark was part of the new prequel show, but nearly everyone thought it would only be behind the scenes. When NCIS fans tuned in for the NCIS: Origins season ...

Going into NCIS: Origins, we knew that we’d be hearing Mark Harmon‘s voice as he narrated the prequel story of his character, now played by Austin Stowell. But a nice surprise was Harmon appearing ...

NCIS spin-off NCIS: Origins has had its future confirmed. The prequel series, focusing on a young version of Mark Harmon's Leroy Jethro Gibbs, was initially given a 13-episode order (it's so far aired ...

NCIS, on which Harmon ... this guy for 20 years. And I wanted to pay homage to his acting talent. So I wasn't doing an impression, but I was trying to encapsulate who I thought Mark was.

Going into NCIS: Origins, we knew that we’d be hearing Mark Harmon‘s voice as he narrated the prequel story of his character, now played by Austin Stowell. But a nice surprise was Harmon ...