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 Susanna Thompson Army Lt. Col. Hollis Mann Guest Star Kathleen York Stephanie Flynn Guest Star John Asher Fred Rinnert Guest Star Lilli Birdsell Jill Reynolds Guest Star Myk Watford Army Maj. Eric Sweigart Guest Star Robin Dunne Army Lt. Joseph Marsden Guest Star Donald P. Bellisario Executive Producer Dennis Smith Director Alfonso H. Moreno Writer