The film follows the exploits of Stefan as he fights against the Nazis as a RAF pilot.
| Actor | Role |
|---|---|
 Bogusz BilewskiLt. Stefan Zaremba | Lt. Stefan Zaremba |
| KKrystyna IwaszkiewiczMargaret Hill | Margaret Hill |
 Danuta NagórnaKatarzyna | Katarzyna |
 Jan MachulskiLieutenant Stanisław Kamień | Lieutenant Stanisław Kamień |
| JJane RidgwayAlice | Alice |
 Kazimierz DejunowiczDoctor | Doctor |
 Kazimierz FabisiakFrancois | Francois |
 Emil KarewiczGerman Pilot | German Pilot |
| MMiłosz MaszyńskiDoctor Ruvet | Doctor Ruvet |
 Artur MłodnickiGerman Officer | German Officer |
| ZZbigniew RomanPierre | Pierre |
 Włodzimierz SkoczylasZygmunt | Zygmunt |
 Igor ŚmiałowskiZawada | Zawada |
 Jerzy KozakiewiczFrench Resistance Member (uncredited) | French Resistance Member (uncredited) |
 Leonard PietraszakPilot (uncredited) | Pilot (uncredited) |