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 Probationary NCIS 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 Eric Matheny Kip Klugman Guest Star Gregory Scott Cummins Kobe "Beef" Carver Guest Star Heather Mazur Laura Strike-DePalma Guest Star Edward Fordham Jr. Burly Man, "Lump" Guest Star Brett DelBuono Navy Seaman Apprentice Brian Dokes Guest Star Diandra Lyle Alexandria P.D. Karen Stradivarius Guest Star Gary Glasberg Executive Producer 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 Christopher J. Waild Writer Dennis Smith Director