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