Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor, Executive Producer Sean Murray NCIS Special Agent Timothy McGee Actor Emily Wickersham NCIS Special Agent Eleanor "Ellie" Bishop Actor Wilmer Valderrama NCIS Special Agent Nicholas "Nick" Torres Actor Maria Bello Special Agent Jacqueline "Jack" Sloane Actor Brian Dietzen Dr. Jimmy Palmer Actor Diona Reasonover Forensic Scientist Kasie Hines Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Devale Ellis Dante Brown Guest Star Wayne Lopez Prison Sergeant Desmond Walters Guest Star Bertila Damas Navy Master Chief Petty Officer Renee Quichera Guest Star Elizabeth Laidlaw Correction Officer Rita Brindle Guest Star Martin Copping Benny the Bartender Guest Star E. Ambriz DeColosio Ricky McCoy Guest Star Carl Donelson Edgar Ramirez Guest Star Brent Henri Kendall "Trey" Quichera Guest Star Mary Kate Garrney Tanya Owens Guest Star 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 David J. North Writer Tony Wharmby Director