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 Nick Searcy Joseph Barnes Guest Star Owen Beckman Nicholas Barnes Guest Star Rick Otto Adrian Nelson Guest Star Margaret Easley Sara Nelson Guest Star Schuyler Yancey Petty Officer Christopher Muñoz Guest Star Donald P. Bellisario Executive Producer Martha Mitchell Director Steven D. Binder Writer