Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor Sasha Alexander NCIS Special Agent Caitlin Todd Actor Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor David McCallum Dr. Donald "Ducky" Mallard Actor Pancho Demmings Gerald Jackson Guest Star Jessica Steen NCIS Special Agent Paula Cassidy Guest Star Heath Freeman Benjamin Frank Guest Star Michael Shamus Wiles Jimmy the Bartender Guest Star Joseph Bey Nasser Al Jazair Guest Star Hrach Titizian Tariq Abassi Guest Star Erick Avari William Gamal Guest Star Kevin McCorkle Army Col. Dan McClafferty Guest Star Casey McCarthy Biker Chick Guest Star Paul Vinson Biker Guest Star E. Roger Mitchell M.P. Guest Star Donald P. Bellisario Executive Producer Ian Toynton Director Philip DeGuere Jr. Writer