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 Ethan Rains Kevin Hussein Guest Star Erin Allin O'Reilly Heidi Partridge Guest Star Vik Sahay Henry Kahn Guest Star Indira G. Wilson FBI Agent P. Filsk Guest Star Kent Shocknek Guy Ross Guest Star David Bickford Priest Guest Star Rick Deats Navy Admiral John McGee 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 Terrence O'Hara Director