Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor Sasha Alexander NCIS Special Agent Caitlin Todd Actor Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor David McCallum Dr. Donald "Ducky" Mallard Actor Brian Dietzen Jimmy Palmer Guest Star Abigail Breslin Sandy Watson Guest Star Ely Pouget Julie Watson Guest Star William Mapother Kyle Grayson Guest Star David Keith Navy Capt. Mike Watson Guest Star Audrey Wasilewski Shirley Wilkes Guest Star Nick Warnock Marine Staff Sgt. Guest Star Donald P. Bellisario Executive Producer Christopher Crowe Writer Thomas J. Wright Director