Ladislav Rychman
Director

Vladimír Ráž
Dr. Václav Pánek Václav Voska
Dr. Vladimír Gajdos Irena Kačírková
Dr. Lída Kafková Rudolf Deyl
Sebek - captain of SNB Zora Polanová
Marie Bosáková - assistant Jan Pivec
Driver Hába Ladislav Pešek
Karel Chládek Vladimír Hlavatý
Janitor Jaroslav Marvan
Zouplna Felix le Breux
Director Miloš Nedbal
Ing. Karel Vlach Ferdinand Krůta
Laboratory

Štěpán Koníček
Conductor Jaroslav Kupšík
Assistant Camera Ladislav Rychman
Screenstory Miroslav Sinkule
Camera Operator Edvard Valenta
Screenplay Miloslav Drtílek
Screenplay Karel Krautgartner
Original Music Composer Václav Lídl
Original Music Composer Miroslav Hájek
Editor Luděk Škuta
Story Alois Jiráček
Director of Photography Dobroslav Šrámek
Sound