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 Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Omid Abtahi Saleem Ulman Guest Star Noa Tishby DEA Agent Claire Connell Guest Star Todd Lowe NCIS Special Agent Chad Dunham Guest Star Mercedes Mason Police Officer Heather Kincaid Guest Star Marcus Brown Navy Petty Officer Dominic Dimarco Guest Star Sonita Henry USAF Capt. Rebecca "Becky" Hastings Guest Star Donald P. Bellisario Executive Producer Dennis Smith Director Jesse Stern Writer