Mark Harmon is shedding a little light on going from being the lead on NCIS to working more behind the scenes on NCIS: ...

Mark Harmon reveals how his friendship with retired NCIS agent Leon Carroll Jr. shaped his portrayal of Gibbs and led to ...

From playful ad-libs to unexpected injuries, NCIS stars are opening up about the moments fans never saw. As the show celebrates its 500th episode, cast members like Sean Murray and Brian Dietzen are ...

Just weeks after Rocky Carroll exited 'NCIS' after 18 seasons, fans were thrilled to know the actor is directing a season 23 episode that's airing on April 14.