• 
  Ann Smyrner

  Ingrid
• 
  John Agar

  Capt. Don Graham
• 
  Annie Birgit Garde

  Ellen
• 
  Mimi Heinrich

  Ursula
• 
  Bente Juel

  Colleen
• 
  Louis Miehe-Renard

  Svend (as Louis Meihe Renard)
• 
  Peter Monch

  Karl (as Peter Mönch)
• 
  Ulla Moritz

  Lise

• 
  Carl Ottosen

  Commander Eric
• 
  Ove Sprogøe

  Barry O'Sullivan
• 
  Greta Thyssen

  Greta Thyssen

• 
  Samuel Z. Arkoff

  producător
• 
  Bert I. Gordon

  special effects
• 
  Jim Danforth

  visual effects