‘NCIS’ is a popular CBS drama series that premiered in 2003. The show is currently in its 17th season. The series stars Mark Harmon as NCIS Special Agent Leroy Jethro Gibbs, a former Marine gunnery sergeant whose skills as an investigator are unmatched. He leads a team that must work together in high-stress situations. This team includes Special Agent Timothy McGee (Sean Murray), NCIS Special Agent Eleanor “Ellie” Bishop (Emily Wickersham), NCIS Special Agent Nickolas “Nick” Torres (Wilmer Valderrama), NCIS Special Agent Jacqueline “Jack” Sloane (Maria Bello), Dr. Jimmy Palmer (Brian Dietzen), Forensic Scientist Kasie Hines (Diona Reasonover), NCIS Director Leon Vance (Rocky Carroll), and Dr. Donald “Ducky” Mallard (David McCallum). ‘NCIS’ has been one of television’s most-watched dramas for years. The series is actually a spinoff of ‘JAG’ and the success of ‘NCIS’ has led to two spinoffs. See more photos of ‘NCIS’ in our gallery now.