Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor, Executive Producer Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor Brian Dietzen Dr. Jimmy Palmer Actor Emily Wickersham NSA Agent Eleanor "Ellie" Bishop Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Leslie Hope Secretary of the Navy Sarah Porter Guest Star Alan Ruck Ward Beringer Guest Star Geoffrey Blake Marc Attencio Guest Star Gideon Emery Rudolph Stalin Guest Star Tim Peper NSA Special Agent Chad Flynderling Guest Star Nichelle Hines NCIS Special Agent Norma Hench Guest Star Gary Glasberg Executive Producer Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer Shane Brennan Executive Producer Donald P. Bellisario Executive Producer Christopher J. Waild Writer Dennis Smith Director