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 Diane Neal CGIS Agent Abigail Borin Guest Star Jim Beaver Capt. Tom O'Rourke Guest Star Chris Marrs First Mate James Meyer Guest Star Lobo Sebastian Renaldo Aranda, Engineer Guest Star Stephanie Charles Coast Guard Petty Officer Patricia Felton Guest Star Pressly Coker Navy Chief Petty Officer Leonard Jones Guest Star Erick Lopez Jaime Ribeiro Guest Star Marcos Cruz Young Hijacker 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 Silber Writer Arvin Brown Director