• 
  Reginald Beckwith

  Harold
• 
  Mark Dignam

  Prison Governer
• 
  Arnold Marl

  Karl Kopek
• 
  Terence Morgan

  Inspector Ralph Brown
• 
  Fred Johnson

  Professor Robinson-Heston
• 
  John Maxwell
• 
  Basil Dignam

  Wing Commander Riddle
• 
  Barry Lowe

  Pvt. Eric Colter, soldier with rifle

• 
  John Horsley

  Assistant Commissioner

• 
  Alec Mills

  camera and electrical departme
• 
  Stanley Pavey

  imagine
• 
  Douglas Myers

  montaj
• 
  Ben Arbeid

  production manager
• 
  Douglas Hickox

  second unit director or assist
• 
  Val Valentine

  scriitor