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On screen
Cast
26 credited performers
Jan Tříska
Jan Svozil
Artwork unavailable
Jana Hliňáková
Character not listed
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Jaroslav Rava
Stanislav Hradecký
Jana Hlaváčková
Vlasta Martínková
Gabriela Wilhelmová
Hana
Zdena Herfortová
Eva Svozilová
Oldřich Vykypěl
ROH chairman
Artwork unavailable
Oldřich Slavík
Jaroslav Stehlík (uncredited)
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Jiří Hanák
Miroslav Janoušek (uncredited)
Vilém Pfeiffer
Bartoněk (uncredited)
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Jiří Dušek
Zdražil (uncredited)
Milan Pásek
Institute director (uncredited)
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Karel Adam
Department manager (uncredited)
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Helena Trýbová
Scientist (uncredited)
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Vladimír Pavlar
Doc. Rozehnal (uncredited)
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Bohumil Slezáček
Professor (uncredited)
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Arnošt Navrátil
Doctor (uncredited)
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Sylvie Nitrová
Nurse (uncredited)
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Marcela Dürrová
Laboratory assistant (uncredited)
Miroslav Donutil
Assistant (uncredited)
Artwork unavailable
Milan Kročil
Assistant (uncredited)
Zdeněk Maryška
Assistant (uncredited)
Artwork unavailable
Zdeněk Dryšl
Houseman (uncredited)
Jana Gazdíková
Secretary (uncredited)
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Blažena Rýznarová
Official (uncredited)
Artwork unavailable
Markéta Rauschgoldová
Canteen assistant (uncredited)