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 Ellen Hoffman Tina Larsen Guest Star Margo Harshman Delilah Fielding Guest Star Scott Speiser Rafi Ali Guest Star Jay Ali Omer Malik Guest Star Lane Garrison Gunnery Sgt. Holt Perkins Guest Star Chris Bert Pizza Delivery Guy Guest Star Jed Rees Mashir Malik Guest Star Simon Rex Scott Bleeker Guest Star Yaani King Mondschein Leandra Perkins Guest Star Michelle Pascarella Mallory Bleeker Guest Star Chad Bennett Homeland Security Agent 1 Guest Star Bryan Boone Homeland Security Agent 2 Guest Star Charles Remley Homeland Security Agent 3 Guest Star Gary Glasberg Executive Producer Chas. Floyd Johnson Executive Producer Mark Horowitz Executive Producer Shane Brennan Executive Producer Donald P. Bellisario Executive Producer Christopher J. Waild Writer Holly Dale Director