Edward Zwick Director, Producer Tobey Maguire Bobby Fischer Actor, Producer Peter Sarsgaard William Lombardy Actor Liev Schreiber Boris Spassky Actor Michael Stuhlbarg Paul Marshall Actor Lily Rabe Joan Fischer Actor Robin Weigert Regina Fischer Actor Seamus Davey-Fitzpatrick Teenage Bobby Fischer Actor Aiden Lovekamp Young Bobby Fischer Actor Conrad Pla Carmine Nigro Actor Evelyne Brochu Donna Actor Sophie Nélisse Young Joan Actor Andreas Apergis Uncle Paul Actor Steven Knight Screenwriter Gail Katz Producer Kevin Scott Frakes Executive Producer Michael Ilitch Jr. Executive Producer Julie B. May Executive Producer Dale Armin Johnson Executive Producer Glenn Murray Executive Producer Josette Perrotta Executive Producer Stephen J. Rivele Executive Producer Raj Singh Executive Producer Christopher Wilkinson Executive Producer Árni Björn Helgason Executive Producer Bradford Young Cinematographer Steven Rosenblum Film Editing James Newton Howard Original Music Isabelle Guay Production Design Jean-Pierre Paquet Art Director Robert Parle Art Director Aron Bergmann Magnússon Art Director Daniel Hamelin Set Decoration Martine Kazemirchuk Set Decoration Fred Berthiaume Set Decoration Lisa Clark Set Decoration André Valade Set Decoration Renée April Costume Design Victoria Thomas Casting