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 Greg Zola Worth Guest Star Marguerite MacIntyre Cmdr. Lauren Tyler Guest Star Bruce Gray CIA Assistant Director Jonathan Overmeier Guest Star Katy Boyer Lt. Egan Guest Star Mercedes Colon Gina Guest Star James Morrison CIA Director Roper Guest Star Sean Murray NCIS Special Agent Timothy McGee Guest Star Victor McCay Ash Guest Star Parry Shen Ben Richmond Guest Star Donald P. Bellisario Executive Producer Alan J. Levi Director Frank Cardea Writer George Schenck Writer Dana Cohen Writer