• 
  Clark Gable

  Jules Fabian
• 
  John Barrymore

  Riviere
• 
  Lionel Barrymore

  Insp. Robineau
• 
  Myrna Loy

  Wife of Brazilian Pilot
• 
  Harry Beresford

  Pierre Roblet
• 
  Dorothy Burgess

  Pellerin's Girlfriend
• 
  Frank Conroy

  Radio Operator
• 
  Helen Jerome Eddy

  Worried Mother

• 
  Leslie Fenton

  Jules' Radio Operator / Co-Pilot
• 
  William Gargan

  Brazilian Pilot
• 
  C. Henry Gordon

  Daudet
• 
  Helen Hayes

  Simone Fabian
• 
  Robert Montgomery

  Auguste Pellerin
• 
  Buster Phelps

  Sick Child
• 
  Irving Pichel

  Dr. Decosta