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 Jennifer Esposito NCIS Special Agent Alexandra "Alex" Quinn Actor Emily Wickersham NCIS Probationary 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 Robert Wagner Anthony Dinozzo Sr. Guest Star Johnny Rey Diaz Victor Medina Guest Star Joseph C. Phillips Philip Conway Guest Star Peter Macon ICE Agent Baldwin Guest Star Adam Busch Arthur Jankowski Guest Star Sonya Balmores Officer Sandra Cornell Guest Star Julie Carmen Mrs. Medina Guest Star T. Lynn Eanes Nathan Roberts Guest Star Coy Stewart Brandon Conway Guest Star Tom Costello Seaman Troy Willis Guest Star Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer 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 Alrick Riley Director