Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor, Executive Producer Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor Wilmer Valderrama NCIS Special Agent Nicholas "Nick" Torres Actor Maria Bello NCIS Special Agent Jacqueline "Jack" Sloane Actor Emily Wickersham NCIS Special Agent Eleanor "Ellie" Bishop Actor Brian Dietzen Dr. Jimmy Palmer Actor Duane Henry MI6 Officer Clayton Reeves Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Joe Spano Tobias "T.C." Fornell Guest Star Hilary Ward Jessica Shaeffer Guest Star Vinessa Antoine Sarah Willis Guest Star Kevin Pollak Albert Hathaway Guest Star Jeff Berg Michael Barrett Guest Star Matt Lowe Joey Barrett Guest Star Dustin Ingram Ozzie Duncan Guest Star Kinsey McLean Navy Cmdr. Sean Evans Guest Star June Carryl Julia Marino Guest Star Chantelle Barry Patrice Jansen Guest Star Jeremy A. Lopez Virginia State Police Officer Keith Sanchez Guest Star Peter Jang Navy Cmdr. James Willis Guest Star Maury Morgan Virginia State Police Officer Marsha Jones Guest Star Graham Hamilton Gabriel Hicks Guest Star Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer, Director Frank Cardea Executive Producer George Schenck Executive Producer Steven D. Binder Executive Producer Scott Williams Executive Producer Donald P. Bellisario Executive Producer Gina Lucita Monreal Writer