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

Linda Sini

Corinna

Fritz Lang