Former NCIS star Mark Harmon looked unrecognizable as he made a rare public appearance out and about in Los Angeles ahead of ...

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

When it came to asking out his wife Pam Dawber for the first time, Mark Harmon did not beat around the bush. The former NCIS star tells PEOPLE a cold call led to their first date — 37 years ago.

While the cast has rotated quite a bit over that time, Leroy Jethro Gibbs, played by Mark Harmon, has been a staple of the long-running drama. He's one of the original characters introduced on the ...

The real reason Mark Harmon made the shocking decision to quit NCIS has been revealed. The 73-year-old actor played special agent Leroy Jethro Gibbs on the hit CBS show for almost 20 years before ...

After working together on the medical drama Chicago Hope, Rocky Carroll and Mark Harmon reunited on NCIS in 2008 when the latter came aboard to play Leon Vance in Season 5. The two actors remained ...

Mark Harmon, 72, was pictured doing household chores outside of his LA home The former NCIS star was seen effortlessly ...