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 Susanna Thompson Army Lt. Col. Hollis Mann Guest Star Margo Harshman Delilah Fielding Guest Star Julie Ann Emery Erin Pace Guest Star Karan Oberoi Benham Parsa Guest Star William deVry Lt. Cmdr. D. Stone Guest Star Brandon Gibson Hal Beem Guest Star Justin Cuomo Navy Petty Officer 1st Class Daniel Coyne Guest Star Ravi Kapoor Bashire Malik 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 Silber Writer James Whitaker Director