John Kent Harrison Director, Screenwriter Michael Fassbender Lt. Harry Colebourn Actor Gil Bellows Col. John Barret Actor Stephen Fry Protheroe the Zookeeper Actor David Suchet General Hallholland Actor Jonathon Young Macray Actor Ted Atherton Captain Elliot Actor Aaron Ashmore Corporal Randy Taylor Actor Robert Gauvin Sgt. Major Picard Actor Simon Vaughan Writer, Producer, Executive Producer John Goldsmith Screenwriter Kim Todd Producer, Executive Producer Justin Bodle Executive Producer Devan Towers Executive Producer Jean Lépine Cinematographer Ron Wisman Film Editing Charlie Mole Original Music Craig Sandells Production Design Maryam Decter Set Decoration Charlotte Penner Costume Design Heike Brandstatter Casting Coreen Mayrs Casting