Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Cote de Pablo NCIS Special Agent Ziva David Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor Lauren Holly NCIS Director Jenny Shepard Actor David McCallum Dr. Donald "Ducky" Mallard Actor Paul Telfer Damon Werth Guest Star José Zúñiga Navy Capt. Dr. Adrian De La Cas Guest Star Amy Carlson Karen Sutherland Guest Star Patrick Fabian Ray Vincent Guest Star Marcuis Harris Chris Jenkins Guest Star John Siciliano Marine Pfc. Nathan Stone Guest Star Donald P. Bellisario Executive Producer Arvin Brown Director Jesse Stern Writer