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Twofer is the second episode of the fifteenth season of NCIS, and the three hundred thirty-second episode overall.
Starring: Mark Harmon (Leroy Jethro Gibbs), Pauley Perrette (Abby Sciuto), Sean Murray (Timothy McGee), Wilmer Valderrama (Special Agent Nicholas "Nick" Torres), Emily Wickersham (Eleanor Bishop), Brian Dietzen (Dr. Jimmy Palmer), Duane Henry (MI6 Officer Clayton Reeves) (credit only)
Guest Starring: Coby Ryan McLaughlin (Pete Wilkins), A. Leslie Kies (Donna Coyne), Todd Giebenhain (Leo Vairo), Adam Jackson (Phil Proderman), Peggy Dunne (Doris Tolchuck), Matt Knudsen (Jensen Reed), Judy Kain (Gladys Stone)