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 Joel Gretsch NCIS Special Agent Stan Burley Guest Star Jonathan T. Floyd Petty Officer Second Class Gil Niles Guest Star Anson Scoville Petty Officer Second Class Peter Shrewe Guest Star Charlie Hofheimer Petty Officer First Class Bobby Wilkes Guest Star Carlos Gomez Chief Petty Officer Reyes Guest Star Corbin Allred Corpsman Milano Guest Star Bruno Gunn Air Boss Guest Star Jonathan Sandowski Lt. Norski Guest Star Alex Avant Clerk Guest Star Rigo Sanchez Boyfrient Guest Star Eddie Diaz Petty Officer Gomez Guest Star Larry Sullivan Flight Surgeon Guest Star Sal Landi Cmdr. Stovic Guest Star Robert Baker Seaman Guest Star John Littlefield Stovic's Aide Guest Star Donald P. Bellisario Executive Producer Dennis Smith Director Jeff Vlaming Writer Larry Moskowitz Writer