Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor, Executive Producer Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor Brian Dietzen Dr. Jimmy Palmer Actor Emily Wickersham Probationary NCIS Agent Eleanor "Ellie" Bishop Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Jamie Barber NSA Attorney Jake Malloy Guest Star Salli Richardson-Whitfield Carrie Clark Guest Star Jeremy Ratchford Baltimore Police Detective Ramsey Malone Guest Star Tug Coker Assistant State's Attorney Alan Wyner Guest Star Kelly Blatz Navy Petty Officer 3rd Class Kyle Friedgen Guest Star Erinn Westbrook Hanna Friedgen Guest Star Tom Choi Navy Cmdr. Bradley Hall Guest Star Billy "Sly" Williams Francis "Cheech" Del Conte Guest Star Miles Wood Detective James Green Guest Star Lindsey McKeon Taylor Matthews Guest Star Pat Harvey Reporter Guest Star Gary Glasberg Executive Producer Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer Frank Cardea Executive Producer, Writer George Schenck Executive Producer, Writer Steven D. Binder Executive Producer Scott Williams Executive Producer Donald P. Bellisario Executive Producer Dennis Smith Director