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 Brian Dietzen Jimmy Palmer Guest Star Brett Cullen Capt. Todd Gelfand Guest Star Muse Watson Mike Franks Guest Star Cotter Smith NCIS Special Agent in Charge Sam Stevens Guest Star Christopher Maher Capt. Aris Mahir Guest Star Burt Bulos Abog Galib Guest Star Jarvis George Navy Lt. Morgan Tolliver Guest Star Tess Lina Nurse Maria Baliad Guest Star Susan Santiago Camila Charo Guest Star Kevin E. West Mario Guest Star Tyrees Allen NSO Deputy Director Dean Welsh Guest Star Donald P. Bellisario Executive Producer, Writer Dennis Smith Director