| Actor | Lex Barker (as Joe Como), Karin Dor (as Liane Martin), Siegfried Lowitz (as Kommissar Brahm), Rudolf Fernau (as Professor Erasmus), Werner Peters (as Clown Bobo / Martin Droste), Wolfgang Preiss (as Dr. Primarius Krone / Dr. Mabuse), Curd Pieritz (as Dr. Bardorf), Walter Bluhm (as Portier), Hans Schwarz (as Max), Walo Lüönd (as Kriminalassistent Hase), Heinz Gies (as Optiker), Alain Dijon (as Nick Prado), Zeev Berlinsky (as Mann im Leichenschauhaus), Carl de Vogt (as Empfangschef des Schlosshotels) |
