• 
  William K. Howard

  regizor

• 
  Ted Berkman

  scenarist

• 
  Edmund Lowe

  Insp. Barrabal
• 
  Sebastian Shaw

  Frank Sutton
• 
  Ann Todd

  Carol Stedman
• 
  Tamara Desni

  Tamara
• 
  Robert Newton

  Larry Graeme
• 
  Allan Jeayes

  Insp. Elford

• 
  Alastair Sim

  Joshua Collie
• 
  Stewart Rome

  Supt. Marshall
• 
  Gordon McLeod

  D-ul Field
• 
  Michael Rennie (I)

  Medical Examiner

• 
  Alexander Korda

  producător
• 
  Georges Périnal

  imagine
• 
  Jack Dennis

  montaj

• 
  Miklós Rózsa

  coloană sonoră
• 
  Edgar Wallace

  după un roman de