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Blood Brothers is the tenth episode of the thirteenth season of NCIS, and the two hundred ninety-second episode overall.
Starring: Mark Harmon (Leroy Jethro Gibbs), Michael Weatherly (Anthony DiNozzo), Pauley Perrette (Abby Sciuto), Sean Murray (Timothy McGee), Brian Dietzen (Jimmy Palmer), Emily Wickersham (Eleanor Bishop)
Guest Starring: Lindsay Wagner (Barbara Bishop), Ryan Doom (George Bishop), Patricia Bethune (Paulette Quinn), Harry Van Gorkum (Alton Brinkman), Grantham Coleman (Former Army Sergeant Richard Doogan), Jack Mikesell (Navy Lieutenant Alex Quinn)