No image
Cast
Jan Tříska
Jan Svozil
Jana Hlaváčková
Vlasta Martínková
Oldřich Vykypěl
ROH chairman
Gabriela Wilhelmová
Hana
Zdena Herfortová
Eva Svozilová
Jana Gazdíková
Secretary (uncredited)
Vilém Pfeiffer
Bartoněk (uncredited)
Milan Pásek
Institute director (uncredited)
Miroslav Donutil
Assistant (uncredited)
Zdeněk Maryška
Assistant (uncredited)