• 
  Jim Clark

  regizor

• 
  Richard Briers

  Miles Gannet
• 
  Tsai Chin

  Madam Greenfly
• 
  Julie Ege

  Utta Armitage
• 
  Ronald Fraser

  Major Upton
• 
  Patricia Quinn

  Chauffeuse
• 
  Donald Sinden

  Armitage
• 
  Derek Griffiths

  Henson

• 
  James Booth

  Hamilton
• 
  Richard Beckinsale

  Hobbs
• 
  Ellis Dale

  Laboratory Manager
• 
  Spike Milligan

  Customs officer
• 
  Penelope Keith

  Reporter
• 
  Charles Lewsen

  Scientist

• 
  Terry Wells

  art department

• 
  Carl Davis

  departament sunet
• 
  Zelda Barron

  miscellaneous crew
• 
  Seamus Flannery

  design de producţie
• 
  Carl Davis

  Soundtrack
• 
  Ken Barker (I)

  sound department
• 
  Ian Fuller (I)

  sound department
• 
  Graham V. Hartstone

  sound department
• 
  John Fortune

  scriitor
• 
  John Cleese

  scriitor
• 
  Graham Chapman

  scriitor