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 Scott Bakula Dwayne Pride Guest Star Lucas Black Christopher LaSalle Guest Star Zoe McLellan Meredith Brody Guest Star CCH Pounder Dr. Loretta Wade Guest Star Joe Spano Senior FBI Agent T.C. Fornell Guest Star Stuart Margolin Felix Betts Guest Star Aaron Moten Wendell Hobbs Guest Star Chelcie Ross Joseph Hanlon Guest Star Drew Waters Spencer Hanlon Guest Star Brit Shaw Allison Guest Star Jen Nikolaisen Carla Meade Guest Star Nicole Pettis Haley Guest Star Jimmy Deshler Teenager Guest Star LaJessie Smith Lamar Guest Star Garrett Kruithof Maurice Drenault Guest Star Gary Glasberg Executive Producer, Writer Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer Shane Brennan Executive Producer Donald P. Bellisario Executive Producer Tony Wharmby Director