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 Stephanie Hodge Sheriff Charlene Dupray Guest Star Kirk B.R. Woller Lt. Cmdr. Wayne Julius Guest Star Heidi Dippold Laura, Linda Seeger Guest Star Sean McGowan Lt. Wallace Guest Star Kate McNeil Cmdr. Margaret Green Guest Star Pancho Demmings Gerald Jackson Guest Star Donald P. Bellisario Executive Producer Jack Bernstein Writer Alan J. Levy Director