It’s been 22 years of NCIS and the special agents you know and love are about to embark on Season 23 together. The cast has seen stars come and go over the years, including Mark Harmon’s Leroy Jethro ...

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 ...

Sat, October 4, 2025 at 5:30 PM UTC NCIS follows Special Agent Leroy Jethro Gibbs (Mark Harmon), who solves crimes ranging from murder to terrorism. The show has 22 seasons, with the 23rd expected to ...

NCIS has launched so many spinoffs that newer fans may be surprised to learn the CBS stalwart was itself a spinoff. An offshoot of JAG, the popular procedural began in 2003, following a special agents ...