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Larry DavidBoris Yellnikoff
Evan Rachel WoodMelodie St. Ann Celestine
Michael McKeanJoe - Boris' Friend #3
Conleth HillLeo Brockman
Patricia ClarksonMarietta
Ed Begley Jr.John
Carolyn McCormickJessica
Henry CavillRandy James
John Gallagher Jr.Perry
Christopher Evan WelchHoward
Adam BrooksBoris' Friend #1
Lyle KanouseBoris' Friend #2- Clifford Lee DicksonBoy on Street
Yolonda RossBoy's Mother
Samantha BeeChess Mother
Marcia DeBonisLady at Chinese Restaurant- Willa Cuthrell-TuttlemanChess Girl
- Nicole PatrickPerry's Friend
Olek KrupaMorgenstern
Jessica HechtHelena- Lindsay Michelle NaderTelevision Voice (voz)
Armand SchultzTelevision Voice (voz)
Kristen RuhlinMelodie Club Friend #3 (sem créditos)