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Cast
Milan Pásek
Institute director (uncredited)
Gabriela Wilhelmová
Hana
Vilém Pfeiffer
Bartoněk (uncredited)
Jan Tříska
Jan Svozil
Zdeněk Maryška
Assistant (uncredited)
Jana Hlaváčková
Vlasta Martínková
Zdena Herfortová
Eva Svozilová
Oldřich Vykypěl
ROH chairman
Miroslav Donutil
Assistant (uncredited)
Jana Gazdíková
Secretary (uncredited)