Crispian Mills Director, Screenwriter Simon Pegg Meredith Houseman Actor, Executive Producer Finn Cole Don Wallace Actor Asa Butterfield Willoughby Blake Actor Michael Sheen The Bat Actor Nick Frost Anonymous Actor, Executive Producer Hermione Corfield Clemsie Lawrence Actor Jamie Blackley Caspar De Brunose Actor Jo Hartley Babs Wallace Actor Isabella Laughland Kay Actor Jassa Ahluwalia Yuri Actor Hanako Footman Poppet Chenvix-Trench Actor Tom Rhys Harries Clegg Actor Kit Connor Wootton Actor Max Raphael Hargreaves Actor Henry Fitzherbert Screenwriter Josephine Rose Executive Producer Charlotte Walls Producer Jon Ekstrand Music John de Borman Cinematographer Victoria Boydell Film Editing Peter Christelis Film Editing Colin Jones Casting Matthew Button Production Design Abby Bowers Art Director Clare Keyte Set Decoration Colleen Kelsall Costume Design