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 Brian Dietzen Dr. Jimmy Palmer Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Brad Beyer Marine Capt. Joe Westcott Guest Star Mark Rolston George Westcott Guest Star Glen Powell Marine Sgt. Evan Westcott Guest Star David Hoflin Randall J. Kersey Guest Star Chris McGarry Lt. Cmdr. Peter Sanger Guest Star Vinicius Machado Sam Mathis Guest Star Doris Morgado Andrea Aldridge Guest Star Hector Atreyu Ruiz Marine 1st Lt. Michael Torres Guest Star Donald P. Bellisario Executive Producer Nicole Mirante-Matthews Writer Leslie Libman Director