Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Cote de Pablo NCIS Special Agent Ziva David Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Brian Dietzen Jimmy Palmer Guest Star William Devane Nicolas Mason Guest Star Sam Anderson Walter Carmichael Guest Star Zack Lively Conrad Zuse Guest Star Elizabeth Shapiro Sarah Knox Guest Star David Magidoff Michael Seelus Guest Star Rebecca Lowman Navy Lt. Lisa Mason Guest Star J.P. Hubbell Navy Cmdr. Nick Mason Jr. Guest Star Sadie Calvano Rebecca Mason Guest Star Donald P. Bellisario Executive Producer Tony Wharmby Director Steven D. Binder Writer