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 Sean Murray NCIS Special Agent Timothy McGee Guest Star Tom R. Hughes Lt. Rick Johnson Guest Star Adam Baldwin Cmdr. Michael Rainer Guest Star Ryan Culver Man Guest Star Johnny Sneed CIA Agent Andrew Kramer Guest Star Ross Gibby Petty Officer Vengal Guest Star Matt Battaglia Petty Officer Porcaro Guest Star Robert Joseph Lt. Cmdr. Folsom Guest Star Julie Benz Denise Johnson Guest Star Doug Savant Father Larry Clannon Guest Star Kathryn Gordon Young Pregnant Woman Guest Star Brian Dietzen Jimmy Palmer Guest Star Donald P. Bellisario Executive Producer Alan J. Levi Director Jack Bernstein Writer