• 
  Bernard L. Kowalski

  regizor

• 
  Bernard Gordon

  scenarist

• 
  Maximilian Schell

  Hanson
• 
  Brian Keith

  Connerly
• 
  Diane Baker

  Laura
• 
  Rossano Brazzi

  Giovanni
• 
  Sal Mineo

  Leoncavallo
• 
  John Leyton

  Rigby

• 
  Eugène Lourié

  Telegrapher
• 
  Barbara Werle

  Charley
• 
  Robert Keith

  Connerly
• 
  Geoffrey Holder

  Marinar
• 
  Niall MacGinnis

  Harbor Master
• 
  Peter Graves
• 
  J.J. Keith

  Connerly

• 
  José Jaspe
• 
  J.D. Cannon

  Danzig