Before taking on the role of Leroy Jethro Gibbs on NCIS, Mark Harmon starred in Worth Winning, a comedy that has not stood ...

Mark Harmon returns to NCIS, but in a new and unique way. Here's the role he plays in the new prequel series, NCIS: Origins.

Mark Harmon's beloved character Leroy Jethro Gibbs appeared in NCIS season 22, episode 19 in a storyline involving Timothy ...

A rule that Gibbs lives by, so much so that he named his boat Rule 91. In the season 18 finale, "Rule 91," Gibbs' boat was ...

There may still be hope for NCIS: Origins fans, after the season finale ended with a heartbreaking final shot of Special Agent Lala Dominguez's (played by Mariel Molino) seemingly lifeless body ...

NCIS star Mark Harmon has revealed how he maintains his sanity and stardom in Hollywood.Reflecting on what kept him on the ...