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 Alan Dale NCIS Director Tom Morrow Guest Star Pancho Demmings Gerald Jackson Guest Star Joe Spano Senior FBI Agent T.C. Fornell Guest Star Chris Olivero Dave Simmons Guest Star Melissa Lee Sarah Fuentes Guest Star Mark Holton Sergeant Linn Guest Star Elena Lyons Diane Fontaine Guest Star Dar Dixon Army Capt. Bradstone Guest Star William R. Moses DEA Agent Kent Fuller Guest Star Sam Sarpong Bobby Jackson Guest Star Dempsey Pappion Basketball Player Guest Star Benny Nieves Frank Trujillo Guest Star Joe Torry Darryl Wilkins Guest Star Merle Dandridge Marcy Carruthers Guest Star Gregory Itzin FBI Director Guest Star Jodi Bianca Wise Jenny Guest Star Emilie de Ravin Nancy Guest Star Homie Doroodian Seth Shakir Guest Star Donald P. Bellisario Executive Producer, Writer Bradford May Director John C. Kelley Writer