Julia Jackman Director Joe Anders George Bobbin Actor Samuel Paul Small Max Marin Actor Susan Wokoma Andi Anderson Actor Ellie Kendrick Donna Button Actor Josh O'Connor Jonno Actor, Writer, Executive Producer Ray Panthaki Mr Zeppelin Actor Elle McCloskey Molly Actor Ciara Southwood Polly Actor Josh Cowdery Toby Actor Roger Evans Alan Actor Nina Wadia Headmistress Actor Colin Salmon Mike Marvin Actor Alison Sudol Julia Actor Jack Davenport Jeffrey Actor Sue Lawley Sue Lawley Actor Rebecca Osias Mrs McLaughlin, English Actor Connor Boyles Mr Boyles, IT Actor Sophie Mack Smith Miss Summerville, Maths Actor Adam Darlington Journalist #1 Actor Samuel Small Actor Mike Gilbert Writer, Writer Chris Hyson Music, Original Music Jonas Mortensen Cinematographer, Cinematographer Jason Rayton Film Editor Sean Patel-Gould Art Director Lex Wood Costume Design Stephanie Aspin Producer Campbell Beaton Producer Helen Simmons Producer Caroline Cooper Charles Executive Producer Laura Grange Executive Producer Sophie Green Executive Producer Pietro Greppi Executive Producer Stephen Kelliher Executive Producer Jan Pace Executive Producer Julia Stuart Executive Producer Safitri Widagdo Executive Producer Martha Kinn Executive Producer Michael Smith Executive Producer James Riley Executive Producer Mike Gilbert Screenwriter Jason Rayton Film Editor