Lex Barker

FBI Agent Joe Como

Acting

Karin Dor

Liane Martin

Acting

Werner Peters

Martin Droste, aka Bobo the Clown

Acting

Siegfried Lowitz

Police Commissioner Brahm

Acting

Walo Lüönd

Detective Haase

Acting

Wolfgang Preiss

Dr. Krone / Dr. Mabuse

Acting

Kurd Pieritz

Dr. Bardorf

Acting

Rudolf Fernau

Professor Erasmus

Acting

Hans Schwarz Jr.

Henchman Max

Acting

Walter Bluhm

Theater Watchman

Acting

Alain Dijon

Agent Nick Prado

Acting

Heinrich Gies

Optiker

Acting

Carl de Vogt

Empfangschef

Acting

Zeev Berlinsky

Mann im Leichenschauhaus

Acting

Gert Günther Hoffmann

FBI Agent Joe Como (German voice)

Acting

Georg Thomalla

Kriminalbeamter Hase (voice)

Acting

Harry Wüstenhagen

Clown Bobo (voice)

Acting