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Ян Тржиска as Jan Svozil |
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Jana Hliňáková as |
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Jaroslav Rava as Stanislav Hradecký |
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Jana Hlaváčková as Vlasta Martínková |
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Gabriela Wilhelmová as Hana |
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Zdena Herfortová as Eva Svozilová |
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Oldřich Vykypěl as ROH chairman |
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Oldřich Slavík as Jaroslav Stehlík (uncredited) |
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Jiří Hanák as Miroslav Janoušek (uncredited) |
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Vilém Pfeiffer as Bartoněk (uncredited) |
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Jiří Dušek as Zdražil (uncredited) |
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Milan Pásek as Institute director (uncredited) |
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Karel Adam as Department manager (uncredited) |
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Helena Trýbová as Scientist (uncredited) |
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Vladimír Pavlar as Doc. Rozehnal (uncredited) |
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Bohumil Slezáček as Professor (uncredited) |
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Arnošt Navrátil as Doctor (uncredited) |
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Sylvie Nitrová as Nurse (uncredited) |
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Marcela Dürrová as Laboratory assistant (uncredited) |
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Miroslav Donutil as Assistant (uncredited) |
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Milan Kročil as Assistant (uncredited) |
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Zdeněk Maryška as Assistant (uncredited) |
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Zdeněk Dryšl as Houseman (uncredited) |
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Jana Gazdíková as Secretary (uncredited) |
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Blažena Rýznarová as Official (uncredited) |
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Markéta Rauschgoldová as Canteen assistant (uncredited) |
| Sound | Pavel Blatný | Original Music Composer |
| Costume & Make-Up | Oldřich Hubáček | Costume Design |
| Crew | Jiří Daněk | Dramaturgy |
| Writing | Zdeněk Čecháček | Story |
| Editing | Alena Hachlová | Editor |
| Camera | Jiří Kačírek | Director of Photography |
| Writing | Zdeněk Čecháček | Screenplay |
| Production | Ilona Stáňová | Production Manager |
| Art | Luděk Škuta | Set Designer |
| Directing | Vojtěch Štursa | Director |
| Sound | Rudolf Večeřa | Sound |
