Mark Harmon NCIS Special Agent Leroy Jethro Gibbs Actor Michael Weatherly NCIS Special Agent Anthony "Tony" Dinozzo Actor Cote de Pablo NCIS Special Agent Ziva David Actor Pauley Perrette Forensic Specialist Abby Sciuto Actor Sean Murray NCIS Special Agent Timothy McGee Actor Rocky Carroll NCIS Director Leon Vance Actor David McCallum Dr. Donald "Ducky" Mallard Actor Gaius Charles Baltimore Detective Jason King Guest Star Peter Kelamis Bruce Johnson Guest Star Peter Mackenzie Jack Murdoch Guest Star James Hanlon Baltimore Fire Capt. James Marsh Guest Star Patrick Stafford Billy Wayne Guest Star Louise Griffiths Mary Gardocki Guest Star Michael Lesly Fireman 1 Guest Star Dani Dare Young Jason King Guest Star Donald P. Bellisario Executive Producer Christopher J. Waild Writer Reed Steiner Writer Mark Horowitz Director