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Tribes is the eleventh episode of the fifth season of NCIS, and the one hundred fifth episode overall.
Starring: Mark Harmon (Special Agent Leroy Jethro Gibbs), Michael Weatherly (Special Agent Anthony DiNozzo), Cote de Pablo (Mossad Officer Ziva David), Pauley Perrette (Forensic Scientist Abby Sciuto), Sean Murray (Special Agent Timothy McGee), Lauren Holly (NCIS Director Jenny Shepard)
Guest Starring: Shaun Toub (Khalid Mohammed Bakr), Jonathan Lapaglia (FBI Special Agent Brent Langer), Brian Dietzen (Asst. ME Jimmy Palmer), James Parks (Brian Sikes), David Haydn-Jones (Marine Capt. Jim Mills), Jennifer Hetrick (Dr. Donna Dunlap)