• 
  T. Hayes Hunter

  regizor

• 
  Roland Pertwee

  scenarist
• 
  Frank King

  scenarist
• 
  Leonard Hines

  scenarist
• 
  John Hastings Turner

  scenarist
• 
  Rupert Downing

  scenarist

• 
  Boris Karloff

  prof. Henry Morlant
• 
  Cedric Hardwicke

  Broughton

• 
  Ernest Thesiger

  Laing
• 
  Dorothy Hyson

  Betty Harlon
• 
  Anthony Bushell

  Ralph Morlant
• 
  Kathleen Harrison

  Kaney
• 
  Harold Huth

  Aga Ben Dragore
• 
  D.A. Clarke-Smith

  Mahmoud
• 
  Ralph Richardson

  Nigel Hartley

• 
  Jack Raine

  Davis
• 
  George Relph

  doctor

• 
  Michael Balcon

  producător
• 
  Günther Krampf

  imagine
• 
  Ian Dalrymple

  montaj
• 
  Ralph Kemplen

  montaj
• 
  Louis Levy

  coloană sonoră
• 
  Leighton Lucas

  coloană sonoră