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 ... Freakier Friday, with the NCIS star reprising his role as Ryan, now Anna ...

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

Actor Mark Harmon did not return to NCIS as his character Gibbs for a tribute episode to one of the show's late stars. Here's ...

Mark Harmon starred alongside Sean Connery in the 1988 flop that earned a 1.5-star rating from Roger Ebert and a 41% Rotten ...

NCIS has been on our screens for almost two decades and over the years, many famous faces have appeared in minor roles in the ...

Mouser played Kelly Gibbs, the late daughter of Agent Gibbs, who was murdered by drug lord Pedro Hernandez (Thomas Rosales Jr ...