• 
  George Brent

  Jim Warburton
• 
  Brian Aherne

  Anthony Ridgeway
• 
  Barry Norton

  Brazilian Reporter
• 
  Konstantin Shayne

  Dr. Jungmeyer
• 
  Constance Bennett

  Dr. Karen Lawrence
• 
  Alfonso Bedoya

  Paulo
• 
  Alberto Morin

  Radio Operator
• 
  Dickie Jones

  George

• 
  Ross Elliott

  Frank Lane

• 
  James W. Sullivan

  art director
• 
  Reggie Lanning

  imagine
• 
  Richard L. Van Enger

  montaj
• 
  Morton Scott

  music department
• 
  George Milo

  set decorator
• 
  John McCarthy Jr.

  set decorator

• 
  Howard Lydecker

  special effects
• 
  Chuck Roberson

  cascador