Casts
Vladimír Ráž
as Dr. Jan Janský
Zdeněk Štěpánek
as Prof. Kuffner
Jiřina Petrovická
as Hedva
Vlastimil Brodský
as Dr. Kozdera
Svatopluk Beneš
as Dr. Regent
Rudolf Hrušínský
as Kurzweil
Rudolf Deyl
as Papik
Radovan Lukavský
as Kolcava
Vlasta Chramostová
as Kolcavova
Gustav Hilmar
as Prof. Kyselka
