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 Joshua Bitton Petty Officer First Class Chris Gordon Guest Star Leonard Roberts Petty Officer Howard Carter Guest Star James Huang Petty Officer Wong Guest Star Ryan Tasz Petty Officer David Bowman Guest Star Chris Johnson Petty Officer James Morgan Guest Star Brian Thompson Master Chief Petty Officer Vince Nutter Guest Star Alex Weed Johnny Guest Star Harry Hutchinson Alexandria Cop Guest Star Adam Wylie Darin Spotnitz Guest Star Reginald Ballard Antwane Mann Guest Star Jennifer Lyons Zoey Guest Star Donald P. Bellisario Executive Producer Dennis Smith Director Jack Bernstein Writer