Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor, Executive Producer Sean Murray NCIS Special Agent Timothy McGee Actor Emily Wickersham NCIS Special Agent Eleanor "Ellie" Bishop Actor Wilmer Valderrama NCIS Special Agent Nicholas "Nick" Torres Actor Maria Bello Special Agent Jacqueline "Jack" Sloane Actor Brian Dietzen Dr. Jimmy Palmer Actor Diona Reasonover Forensic Scientist Kasie Hines Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Gary Hudson Detective John Fioscher Guest Star Paul Johansson Porter Brandt Guest Star Logan Pepper Dylan Guest Star Damien Leake Henry Bennett Guest Star Allene Quincy Goth Wannabe Guest Star Susan Louise O'connor Woman in Cat Sweater Guest Star Danny Max News Reporter Guest Star Abby Carter Claire O'Donnell Guest Star Victoria Barnes Whitley 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 Katie White Writer Michael Zinberg Director