Richard Ayoade Director, Screenwriter Jesse Eisenberg Simon , James Actor Mia Wasikowska Hannah Actor Wallace Shawn Mr. Papadopoulos Actor Rade Serbedzija Frightening Old Man Actor Cathy Moriarty Actor Gemma Chan Actor Noah Taylor Harris Actor James Fox The Colonel Actor Yasmin Paige Melanie Papadopoulos Actor Chris O'Dowd Doctor Actor Avi Korine Screenwriter Robin C. Fox Producer Amina Dasmal Producer Michael Caine Executive Producer Graeme Cox Executive Producer Tessa Ross Executive Producer Nigel Williams Executive Producer Erik Wilson Cinematographer Nick Fenton Film Editing Chris Dickens Film Editing Andrew Hewitt Original Music David Crank Production Design Denis Schnegg Supervising Art Direction Barbara Herman-Skelding Set Decoration Jacqueline Durran Costume Design Douglas Aibel Casting Karen Lindsay-Stewart Casting