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Klausjürgen Wussow as Derrick Yale |
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Renate Ewert as Thalia Drummond |
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Ernst Fritz Fürbringer as Sir Archibald Morton |
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Fritz Rasp as Froyant |
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Eddi Arent as Sergeant Haggett |
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Ulrich Beiger as Leslie Osborne |
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Richard Lauffen as Felix Marles |
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Thomas Alder as Jack Beardmore |
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Erica Beer as Mrs. Carlyle |
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Edith Mill as Lady Doringham |
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Jürgen Roland as Polizist |
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Friedrich Schütter as Double von Der rote Kreis |
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Karl-Georg Saebisch as Chefinspector Parr |
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Panos Papadopulos as Matrose Selby |
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Heinz Klevenow as |
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Alfred Schlageter as |
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Albert Watson as |
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Karl-Heinz Peters as |
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Mogens Brandt as |
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Alf Marholm as |
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Georg Philipp as |
| Directing | Jürgen Roland | Director |
| Camera | Wolfgang Treu | Camera Operator |
| Writing | Edgar Wallace | Novel |
| Writing | Egon Eis | Screenplay |
| Writing | Wolfgang Menge | Screenplay |
| Production | Preben Philipsen | Producer |
| Sound | Willy Mattes | Original Music Composer |
| Camera | Heinz Pehlke | Director of Photography |
| Sound | Knud Kristensen | Sound |
| Costume & Make-Up | Lilo Hagen | Costume Design |
| Editing | Margot Jahn | Editor |
| Art | Erik Aaes | Production Design |
