He may be gone, but Special Agent Leroy Jethro Gibbs's rules live on. Mark Harmon, who played Gibbs, was one of the last original cast members left on NCIS, having been on the show since its first ...

The NCIS cast is going to feature NCIS Special Agent Dale Sawyer on a new episode of the show Monday night. NCIS fans first met Agent Sawyer during the episode named Gut Punch from Season 18.

Mark Harmon as NCIS Special Agent Leroy Jethro Gibbs on Season 17, Episode 9 called IRL. Pic credit: Patrick McElhenneyCBS. NCIS spoilers from CBS have been released in advance of Tuesday night ...

Vance was recruited by former NCIS Special Agent Whitney Sharp (Catherine Dent), unbeknownst to him, because he had no family and no one would miss him if he was killed.

The long-running procedural NCIS is returning for Season 22, but when does it premiere, what will it be about, and will Katrina Law return to play Jessica Knight?

Mark Harmon who stars as Special Agent Leroy Jethro Gibbs on CBS' 'NCIS,' guest stars on Tuesday, Oct. 7, 2014, on the spinoff 'NCIS: New Orleans.' (Sonja Flemming/CBS ) ...