For 18 seasons (and four season 19 episodes), Mark Harmon starred as former U.S. Marine Corps scout sniper–turned–special agent Leroy Jethro Gibbs. "What has always drawn me here is the character I ...

Find out what Mark Harmon, Pauley Perrette and more are up to today.

NCIS has had no shortage of drama and emotional moments over the last 22 seasons. The military police procedural has followed the lives of special agents from the Naval Criminal Investigative Service ...