| Actor | Role |
|---|---|
 Louis RalphJacques Delma | Jacques Delma |
 Anita BerberNatascha | Natascha |
 Paul BildtJohn Marker | John Marker |
 Hans Adalbert SchlettowDr. Jonas Fjeld | Dr. Jonas Fjeld |
| EEmil WittigBrocke | Brocke |
| FFelix NorfolkBradley | Bradley |
| AArthur BergenBokine | Bokine |
| HHans WallnerCroft | Croft |
| RRudolf Klein-RhodenFaber | Faber |
| MMichael Rainer-SteinerLord Cavendish | Lord Cavendish |
 Karl MartellPatrick Murphy | Patrick Murphy |
| EEmil StammerDet. Hansen | Det. Hansen |
 Hermann PichaDet. Ohlsen | Det. Ohlsen |
| CCurt CappiDet. Binet | Det. Binet |
| FFriedrich BergerNot listed | Not listed |
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