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, Director David McCallum Dr. Donald "Ducky" Mallard Actor Cote de Pablo Ziva David Guest Star Louise Barnes Sarah Guest Star Jack Fisher Phineas Guest Star Usman Ally Victor Mir Guest Star Jeremy Batiste Security Guard Joe Guest Star Kate Rene Gleason Jane Guest Star Karri Turner Micki Kaydar Guest Star Zakary Risinger Hurley Guest Star Taivon McKinney TSA Agent Tammy Gantry Guest Star Hugo Garcia Ernie Guest Star John Gloria George Kaydar Guest Star Monica Day Gloria Guest Star Roland Ruiz Kenny Guest Star Yvette Cason Maureen Guest Star Hap Lawrence Lenny Guest Star Phil Idrissi Big Lou Guest Star Alain Ali Washnevsky Embassy Worker Jamal Antar 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, Writer Donald P. Bellisario Executive Producer