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 Lauren Holly NCIS Director Jenny Shepard Actor David McCallum Dr. Donald "Ducky" Mallard Actor Sasha Alexander NCIS Special Agent Caitlin Todd Guest Star Michael Bellisario Charles 'Chip' Sterling Guest Star Brett Cullen Capt. Todd Gelfand Guest Star Rudolf Martin Ari Haswari Guest Star Joe Spano Senior FBI Agent T.C. Fornell Guest Star Muse Watson Mike Franks Guest Star Cotter Smith NCIS Special Agent in Charge Sam Stevens Guest Star Pancho Demmings Gerald Jackson Guest Star Christopher Maher Capt. Aris Mahir Guest Star Burt Bulos Abog Galib Guest Star Stephanie Mello NCIS Tech Guest Star Tess Lina Nurse Maria Baliad Guest Star Brian Dietzen Jimmy Palmer Guest Star Donald P. Bellisario Executive Producer, Writer Dennis Smith Director James Whitmore Jr. Director Terrence O'Hara Director Dana Coen Writer Colin Bucksey Director Leslie Libman Director Gil Grant Writer Thomas J. Wright Director David J. North Writer George Schenck Writer Steven D. Binder Writer Stephen Cragg Director Jack Bernstein Writer Jeffrey A. Kirkpatrick Writer Laurence Walsh Writer Frank Cardea Writer John C. Kelley Writer Christopher Silber Writer