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, Director David McCallum Dr. Donald "Ducky" Mallard Actor Mike Bradecich Adam Connors Guest Star Shi Ne Nielson FBI Special Agent Daisy Milner Guest Star Stephen Snedden Jim Murphy Guest Star William Charlton Jeff Katz Guest Star Jean Paul San Pedro Dan Dacey Guest Star Winston Story Manny Guest Star Christine Garver Tiffany Leonne Guest Star Shak Ghacha Dominick Rubin Guest Star Devin McGinn Stewart Dorfman Guest Star Leonard Armond Robinson Metro Police Officer Jackson Guest Star Morgan Obenreder Navy Seaman Mary Burk Guest Star Anna Claire Sneed Jane Murphy Guest Star Jackie Johnson Chelsea Mills 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 Matthew R. Jarrett Writer Scott J. Jarrett Writer