""
Jan Tříska
as Jan Svozil
Jana Hliňáková
as
Jaroslav Rava
as Stanislav Hradecký
Jana Hlaváčková
as Vlasta Martínková
Gabriela Wilhelmová
as Hana
Zdena Herfortová
as Eva Svozilová
Oldřich Vykypěl
as ROH chairman
Oldřich Slavík
as Jaroslav Stehlík (uncredited)
Jiří Hanák
as Miroslav Janoušek (uncredited)
Vilém Pfeiffer
as Bartoněk (uncredited)
Jiří Dušek
as Zdražil (uncredited)
Milan Pásek
as Institute director (uncredited)
Karel Adam
as Department manager (uncredited)
Helena Trýbová
as Scientist (uncredited)
Vladimír Pavlar
as Doc. Rozehnal (uncredited)
Bohumil Slezáček
as Professor (uncredited)
Arnošt Navrátil
as Doctor (uncredited)
Sylvie Nitrová
as Nurse (uncredited)
Marcela Dürrová
as Laboratory assistant (uncredited)
Miroslav Donutil
as Assistant (uncredited)
Milan Kročil
Zdeněk Maryška
Zdeněk Dryšl
as Houseman (uncredited)
Jana Gazdíková
as Secretary (uncredited)
Blažena Rýznarová
as Official (uncredited)
Markéta Rauschgoldová
as Canteen assistant (uncredited)
Pavel Blatný
Original Music Composer
Oldřich Hubáček
Costume Design
Jiří Daněk
Dramaturgy
Zdeněk Čecháček
Story
Alena Hachlová
Editor
Jiří Kačírek
Director of Photography
Screenplay
Ilona Stáňová
Production Manager
Luděk Škuta
Set Designer
Vojtěch Štursa
Director
Rudolf Večeřa
Sound
