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 Joe Spano Senior FBI Agent T.C. Fornell Guest Star Lev Gorn Russian Counselor Anton Pavlenko Guest Star Juliette Angelo Emily Fornell Guest Star Alex Veadov Sergei Mishnev Guest Star Marcelo Tubert Nazar Boulos Guest Star Joshua Sawtell Frankie Boulos Guest Star Courtney Hope Petty Officer 2nd Class Judy Sloan Guest Star Scott Michael Morgan Deputy Reed Guest Star Presciliana Esparolini Deputy Guest Star Melinda McGraw Diane Sterling Guest Voice Gary Glasberg Executive Producer Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer Shane Brennan Executive Producer Donald P. Bellisario Executive Producer Scott Williams Writer Bethany Rooney Director