• 
  Lambert Hillyer

  regizor

• 
  Boris Karloff

  Dr. Janos Rukh
• 
  Bela Lugosi

  Dr. Felix Benet
• 
  Frances Drake

  Diane Rukh
• 
  Fred 'Snowflake' Toones

  Native Who First Sees Rukh Glow
• 
  Alphonse Martell

  Surete Official Checking Names
• 
  Edward Reinach

  Scientist
• 
  Winter Hall

  The Minister

• 
  Daisy Bufford

  Mother of Infant
• 
  Charles Fallon

  Gentleman
• 
  Beulah Bondi

  Lady Arabella Stevens
• 
  Frank Reicher

  Professor Meiklejohn
• 
  Nydia Westman

  Briggs - a Maid
• 
  Hans Schumm

  The Clinic Valet
• 
  Dudley Dickerson

  Safari Member

• 
  Walter Kingsford

  Sir Francis Stevens
• 
  Francisco Maran

  Gendarme
• 
  Ernie Adams

  Rol de o replică
• 
  Jean De Briac

  Gendarme
• 
  Frank Lawton

  Ronald Drake
• 
  Daniel L. Haynes

  Rukh's Head Bearer
• 
  Ted Billings

  Counterman
• 
  Ricca Allen

  Bystander

• 
  Howard Higgin

  o poveste de
• 
  Douglas Hodges

  o poveste de