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 William Gregory Lee Metro Police Sgt. Keith Archer Guest Star Christopher Allport Metro Police Cpt. Dan Karzin Guest Star Gary Sommers John Benedict Guest Star Stephanie Mello Cynthia Sumner Guest Star Taryn O'Neill Assistant Guest Star Donald P. Bellisario Executive Producer Terrence O'Hara Director George Schenck Writer Frank Cardea Writer