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 Liza Lapira NCIS Special Agent Michelle Lee Guest Star Rey Valentin NCIS Special Agent Dwayne Wilson Guest Star Eric Martsolf Paul Harris Guest Star Anthony Montgomery Marine Cpl. George Linden Guest Star Peggy Stewart Elderly Lady Guest Star Lenny Schmidt Eddie Banasek Guest Star Michael Swan Ray Vittorio Guest Star Louis Iacoviello Curtis Ranier, James Meyers Guest Star Chelsey Crisp Grace Penland Guest Star Helena Barrett Attractive Recruit Guest Star Melonie Mack Jenny Page Guest Star Tanner Blaze Whitlock Tommy Page Guest Star Peter Gannon Bartender Guest Star Billy Finnigan Joey Vittorio Guest Star Donald P. Bellisario Executive Producer Terrence O'Hara Director Alfonso H. Moreno Writer