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
David Cameron
Michael Parker
Christiane Maybach
Maid
Albert Bessler
Hotelingenieur
Marielouise Nagel
The Blonde Luck
Reinhard Kolldehoff
Roberto Menil aka 'Klumpfuß'
Nico Pepe
Hotel-Manager
Jean-Jacques Delbo
Cornelius' Butler
