Hansjörg Felmy as John Hillier

Maria Perschy as Ann Barry

Dieter Borsche as Mac Ferguson

Wolfgang Preiss as Morel Smith

Harry Riebauer as Philip Trooper

Rudolf Forster as Francis Barry

Chris Howland as Cabby Pennypacker

Rudolf Fernau as Jerome

Bruno W. Pantel as

Albert Bessler as Francois Bréant

Harald Sawade as

Narziß Sokatscheff as

Günter Glaser as Museumschef

Alexander Engel as

Stanislav Ledinek as

Edwin Zbonek as