Rumor has it NCIS star Mark Harmon used his clout to get creator Donald P. Bellisario fired because they were feuding, but ...

Before NCIS, Mark Harmon played a womanizing sleazeball with an STD — on a show that only survived because NBC was desperate ...

Despite the show's massive ensemble cast, the first character that comes to mind from "NCIS" is Leroy Jethro Gibbs (Mark Harmon). The stern former Marine Sniper steers the NCIS Major Case Response ...

Mark Harmon left his NCIS days behind three years ago, hanging up his badge as Agent Leroy Jethro Gibbs after almost two ...

Mark Harmon, who has spent almost two decades as Agent Gibbs in NCIS, has been working on a completely different project.