Paul Weiland Director Helena Bonham Carter Esther Actor Eddie Marsan Manny Actor Gregg Sulkin Bernie Actor Stephen Rea Dr. Barrie Actor Catherine Tate Aunt Lila Actor Stephen Greif Mr. Shapiro Actor Peter Serafinowicz Uncle Jimmy Actor Charlie May-Clark Boy with Caliper Actor Natascha Wharton Executive Producer Elizabeth Karlsen Producer Fiona Weir Casting Bridget O'Connor Screenwriter Peter Straughan Screenwriter Daniel Landin Cinematographer Paul Tothill Film Editing Michael Howells Production Design Lynne Huitson Art Director Joby Talbot Original Music