Henry B. Travers
Detective Inspector Kras
Prof. Jordan / Peter Cornelius / Dr. Mabuse
Marion Menil
Hieronymus B. Mistelzweig
Hotel Detective Berg
No. 12
Michael Parker
Maid
Hotelingenieur
The Blonde Luck
Roberto Menil aka 'Klumpfuß'
Hotel-Manager
Cornelius' Butler
Corinna
TV announcer
Interpol-Chef
Police-Officer
Chambermaid
Photojournalist (uncredited)
Reporter (uncredited)
Barkeeper Karl (uncredited)
No. 11 (uncredited)
BKA-Chef (uncredited)
