NCIS/Nature of the Beast

Nature of the Beast
Season 9, Episode 1
Airdate	September 20, 2011
Written by	Gary Glasberg
Directed by	Tony Wharmby
← 8x24 Pyramid (2)	9x02 → Restless
NCIS — Season Nine

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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 Rocky Carroll (NCIS Director Leon Vance)

and David McCallum (Dr. Donald "Ducky" Mallard)

Also Starring: Brian Dietzen (Asst. ME Jimmy Palmer)

Guest Starring: Sarah Jane Morris (Special Agent EJ Barrett), Wendy Makkena (Dr. Rachel Cranston), Philip Casnoff (Sean Latham), Matthew Willig (Special Agent Simon Cade)

with Scott Wolf (FBI Agent Casey Stratton)

and Matt Craven (Secretary of the Navy Clayton Jarvis)

Co-Starring: Bryan Friday (Navy Captain Felix Wright)