François Girard Director Tim Roth Martin Actor Clive Owen Dovidl Actor Catherine McCormack Helen Actor Jonah Hauer-King Dovidl Actor Gerran Howell Martin 17-21 Actor Richard Bremmer Billy Actor Amy Sloan Enid Actor Stanley Townsend Gilbert Actor Max Macmillan Peter Stemp Actor Jeffrey Caine Screenwriter Norman Lebrecht Screenwriter Nick Hirschkorn Producer Lyse Lafontaine Producer Robert Lantos Producer Klemens Hallmann Executive Producer Tibor Krsko Executive Producer Randy Lennox Executive Producer Nadine Luque Executive Producer David Franco Cinematographer Michel Arcand Film Editing Howard Shore Original Music François Séguin Production Design Katie Gormley Art Director Deirdre Bowen Casting Anne Dixon Costume Design