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 Michelle Obama Herself Guest Star Joe Spano Senior FBI Agent T.C. Fornell Guest Star Sandra Nelson Jessica Terdei Guest Star Adrian Sparks Hugo Radcliffe Guest Star Benjamin Stockham Henry Marshall Guest Star Reiko Aylesworth Ann Marshall Guest Star Pete Gardner Detective Swanson Guest Star Zoe Perry Police Officer Kristen Guest Star Elijah Mahar Master Sgt. David Marshall Guest Star Stephen Oyoung Navy Capt. Andrew Hubbard Guest Star Paul Holowaty MI6 Officer Guest Star Gary Glasberg Executive Producer Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer Frank Cardea Executive Producer George Schenck Executive Producer Steven D. Binder Executive Producer Scott Williams Executive Producer Donald P. Bellisario Executive Producer Gina Lucita Monreal Writer Jennifer Corbett Writer Dennis Smith Director