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Hanka Ordonówna as Rita Holm, Singer and intelligence agent |
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Bogusław Samborski as Pedro |
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Jerzy Leszczyński as Professor Skalski, Jerzy's father |
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Jerzy Pichelski as Engineer Jerzy Skalski |
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Igo Sym as Head of Intelligence |
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Lena Żelichowska as Polish counterintelligence agent |
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Wanda Jarszewska as Shop Customer |
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Alina Żeliska as Customer |
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Andrzej Bogucki as Man in Cafe |
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Lech Owron as Man talking to Skalski |
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Roman Dereń as Caretaker in Laboratory |
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Aleksander Suchcicki as Skalski's Colleague |
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Zdzisław Karczewski as Albert |
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Loda Niemirzanka as |
| Writing | Mieczysław Krawicz | Writer |
| Writing | Antoni Marczynski | Writer |
| Directing | Mieczysław Krawicz | Director |
