Directed by
| Karel Steklý | ||
Writing Credits (in alphabetical order)
| Josef Picek | ... | (as Joseph Picek) |
| Karel Steklý | ||
Cast (in credits order)
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Jirí Polák | ... | pionýr Ivan Veselský |
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Vojtech Zoula | ... | vedoucí pionýrské rady Pavel Kubec |
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Ruzena Dvoráková | ... | Alena |
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Ivana Vacková | ... | Miluska |
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Jaromír Sudek | ... | Matus, Alenin bratr |
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Otomar Korbelár | ... | profesor Ríha |
| Walter Taub | ... | astronom Dr. Modr (as Valter Taub) | |
| Stanislav Remunda | ... | astronom Dr. Pribyl | |
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Lída Vendlová | ... | vedecká pracovnice Jílková |
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Libuse Ridelová | ... | pokladní Veselská, Ivanova matka |
| Bohumil Bezouska | ... | astronom Kubr | |
| Gustav Heverle | ... | ridic Vosátka | |
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Ruzena Nováková | ... | Skorepová |
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Zuzana Dubská | ... | vedoucí tábora Mirka Kozená |
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Oldrich Lukes | ... | ridic cisterny Suchánek |
| Jaroslav Moucka | ... | hajný Stefan | |
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Josef Benátský | ... | Sadar |
| Otto Simánek | ... | Ivanuv otec | |
| Rest of cast listed alphabetically: | |||
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Libuse Zátková | ||
Cinematography by
| Jan Stallich | ||
Editing by
| Jan Kohout | ||
Art Direction by
| Milan Nejedlý | ||
Art Department
| Jirí Hlupý | ... | assistant art director |
Camera and Electrical Department
| Jitka Bylinská | ... | still photographer |
Additional Crew
| Jan Procházka | ... | production team |
| Erich Svabík | ... | production team |
