NCIS/Nature of the Beast
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Nature of the Beast is the first episode of the ninth season of NCIS, and the one hundred eighty-seventh episode overall.
Starring: Mark Harmon (Special Agent Leroy Jethro Gibbs), Michael Weatherly (Special Agent Anthony DiNozzo), Cote de Pablo (Special Agent Ziva David), Pauley Perrette (Forensic Scientist Abby Sciuto), Sean Murray (Special Agent Timothy McGee)
with Scott Wolf (FBI Agent Casey Stratton)
and Matt Craven (Secretary of the Navy Clayton Jarvis)
Co-Starring: Bryan Friday (Navy Captain Felix Wright)