演职人员
Jan Svozil
Jan Tříska
Stanislav Hradecký
Jaroslav Rava
Vlasta Martínková
Jana Hlaváčková
Hana
Gabriela Wilhelmová
Eva Svozilová
Zdena Herfortová
ROH chairman
Oldřich Vykypěl
Jaroslav Stehlík (uncredited)
Oldřich Slavík
Miroslav Janoušek (uncredited)
Jiří Hanák
Bartoněk (uncredited)
Vilém Pfeiffer
Zdražil (uncredited)
Jiří Dušek
Institute director (uncredited)
Milan Pásek
Department manager (uncredited)
Karel Adam
Scientist (uncredited)
Helena Trýbová
Doc. Rozehnal (uncredited)
Vladimír Pavlar
Professor (uncredited)
Bohumil Slezáček
Doctor (uncredited)
Arnošt Navrátil
Nurse (uncredited)
Sylvie Nitrová
Laboratory assistant (uncredited)
Marcela Dürrová
Assistant (uncredited)
Miroslav Donutil
Assistant (uncredited)
Milan Kročil
Assistant (uncredited)
Zdeněk Maryška
Houseman (uncredited)
Zdeněk Dryšl
Secretary (uncredited)
Jana Gazdíková
Official (uncredited)
Blažena Rýznarová
Canteen assistant (uncredited)
Markéta Rauschgoldová