NCIS star Mark Harmon famously portrayed Leroy Jethro Gibbs for 19 seasons. Mark left the CBS drama in 2021, and fans have ...

Mark Harmon is making a comeback to the NCIS franchise. CBS announced that the actor will return as Leroy Jethro Gibbs for the upcoming crossover event between NCIS and NCIS: Origins. Harmon starred ...

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

Harmon will return in the flesh for a special crossover event on Tuesday, Nov. 11. For one night only, “NCIS” and “NCIS: ...

NCIS” legend Mark Harmon is bringing his OG Leroy Jethro Gibbs character to the prequel series “NCIS: Origins,” and he’s not ...

Even though Harmon left the main series, he’s never really left the “NCIS” world. He’s still an executive producer on both shows and narrates every episode of “Origins.” Plus, he made a cameo during ...

Origins crossover even more special: Mark Harmon is reprising his role as Leroy Jethro Gibbs in the first hour. CBS announced the news of Harmon’s special guest appearance on NCIS: Origins during the ...

When NCIS first premiered in 2003, it didn’t look like the global TV phenomenon it would eventually become. In its earliest ...