Don McGill Creator, Writer Donald P. Bellisario Creator, Executive Producer, Writer 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 Alan Dale NCIS Director Tom Morrow Guest Star Jessica Steen NCIS Special Agent Paula Cassidy Guest Star Joe Spano Senior FBI Agent T.C. Fornell Guest Star Anson Scoville Petty Officer Second Class Peter Shrewe Guest Star Marguerite MacIntyre Cmdr. Lauren Tyler Guest Star Robert Cicchini Special Agent Daniel Snyder Guest Star Tim Kelleher NCIS Special Agent Christopher Pacci Guest Star John Marshall Jones Detective Hanley Guest Star Sheila E. Frazier Female Reporter Guest Star Pancho Demmings Gerald Jackson Guest Star Brian Dietzen Jimmy Palmer Guest Star Rudolf Martin Ari Haswari Guest Star Gregory Itzin FBI Director Guest Star Asante Jones Homicide Detective Andy Kochofis Guest Star Dennis Smith Director Alan J. Levi Director Peter Ellis Director Thomas J. Wright Director Terrence O'Hara Director Jeff Woolnough Director Ian Toynton Director Bradford May Director James Whitmore Jr. Director Jack Bernstein Writer George Schenck Writer Darcy Meyers Writer John C. Kelley Writer Frank Cardea Writer Chas. Floyd Johnson Executive Producer