SINOPSIS
- Otomar KorbelárColonel Svarc, chief of counterespionage
- Antonín NovotnýLieutenant Petr Nor, inventor of air torpedo
- Raoul SchránilFlying Officer Jan Domin
- Míla ReymonováViolinist Irena Vengerová
- Andrej BagarArnost Gettering, director of the refinery alias c
- Karel HaslerMUDr. Marvan
- Zita KabátováHelena
- Jaroslav MarvanGenerál Herold