Mark Addy (Harry), Tracie Bennett (Alice), Owen Campbell (Clegg), Jeremy Crutchley (Inspector Fry/Doctor), Gaby French (Shirley), Josh Goulding (Hennessy), John Hodgkinson (Albert), Richard Hollis (Bill/Guard), John Horton (Arthur/Governor), Ryan Pope (Charlie/Guard), Dan Stevens (Mooney), Ewen Bremner (Syd)