Elenco

• 

  Peter van Eyck

  Henry B. Travers

• 

  Gert Fröbe

  Detective Inspector Kras

• 

  Wolfgang Preiss

  Prof. Jordan / Peter Cornelius / Dr. Mabuse

• 

  Dawn Addams

  Marion Menil

• 

  Werner Peters

  Hieronymus B. Mistelzweig

• 

  Andrea Checchi

  Hotel Detective Berg

• 

  Howard Vernon

  No. 12

• D

  David Cameron

  Michael Parker

• 

  Christiane Maybach

  Maid

• A

  Albert Bessler

  Hotelingenieur