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Viral is the sixth episode of the thirteenth season of NCIS, and the two hundred eighty-eighth episode overall.
Starring: Mark Harmon (Leroy Jethro Gibbs), Michael Weatherly (Anthony DiNozzo), Pauley Perrette (Abby Sciuto), Sean Murray (Timothy McGee), Brian Dietzen (Jimmy Palmer (credit only)), Emily Wickersham (Eleanor Bishop)
Guest Starring: Kelli Williams (NCIS Special Agent Maureen Cabot), Gregory Harrison (Navy Captain Roland Ebbake), Margo Harshman (Delilah Fielding), Brad Benedict (Navy Lieutenant Nick Rossmore), Kelly Frye (Navy Lieutenant Kara Gifford), Ryan Kennedy (Former Navy Petty Officer First Class Peter Woodruff), Andrew Hawkes (Metro P.D. Detective Dan Campbell), Alisha Boe (Farrah Meyers)