• 
  Garth Jennings

  regizor

• 
  Garth Jennings

  scenarist

• 
  Zofia Brooks

  Tina
• 
  Neil Dudgeon

  Joshua
• 
  Tallulah Evans

  Jess
• 
  Adam Godley

  Brethren Leader
• 
  Jessica Hynes

  Mary
• 
  Diane Leach

  Janet

• 
  Ed Westwick

  Lawrence Carter
• 
  Asa Butterfield

  Brethren Boy
• 
  Paul Ritter

  profesor de geografie
• 
  Eric Sykes

  Frank
• 
  Jules Sitruk

  Didier Revol
• 
  Edgar Wright

  Metal Work Teacher
• 
  Will Poulter

  Lee Carter

• 
  Bill Milner

  Will Proudfoot
• 
  Emilie Chesnais

  French Teacher (as Emile Chesnais)
• 
  Anna Wing

  Grandma
• 
  Charlie Thrift

  Duncan Miller
• 
  Sam Kubrick-Finney

  Danny
• 
  Rachel Mureatroyd

  Marie Plante
• 
  Finola McMahon

  Gail Graham
• 
  Peter Robinson

  Lucas Dupont
• 
  Taylor Richardson

  David Smart