 Józef NowakColonel Marczak | Colonel Marczak |
 Mieczysław CzechowiczCaptain Zawadzki | Captain Zawadzki |
 Jan NowickiCaptain Nawrot | Captain Nawrot |
 Teresa LipowskaKrystyna Kacperska | Krystyna Kacperska |
 Jerzy KaczmarekLieutenant Siwecki | Lieutenant Siwecki |
| AAndrzej KrasickiCounterintelligence Officer | Counterintelligence Officer |
| JJan BielawskiCounterintelligence Officer | Counterintelligence Officer |
 Janusz ZakrzeńskiJanek | Janek |
 Bogdan BaerLudwik Będziński | Ludwik Będziński |
 Bogusz BilewskiWitold Bracki | Witold Bracki |
 Jolanta LotheWanda | Wanda |
 Alfred FreudenheimJanik's Killer | Janik's Killer |
 Bernard MichalskiJan Bernand Olecki / Bernand Michalski | Jan Bernand Olecki / Bernand Michalski |
 Teodor GenderaCounterintelligence Officer | Counterintelligence Officer |
 Janusz GuttnerWojciech Janik | Wojciech Janik |
 Jadwiga KurylukJanik's Maid | Janik's Maid |
 Bolesław PłotnickiHenryk Hilman | Henryk Hilman |
 Sylwester PrzedwojewskiStefan Krawczyk | Stefan Krawczyk |
 Wojciech RajewskiPen Maker | Pen Maker |
 Mieczysław StoorFeldscher | Feldscher |
 Kazimierz WichniarzCounterintelligence Agent | Counterintelligence Agent |
 Jan EnglertCameraman (uncredited) | Cameraman (uncredited) |
 Jerzy JanuszewiczMasseur (uncredited) | Masseur (uncredited) |
 Bogumił KobielaChief Electrician (uncredited) | Chief Electrician (uncredited) |
| BBogdan ŁysakowskiElectrician (uncredited) | Electrician (uncredited) |
 Ludwik PakHR Man (uncredited) | HR Man (uncredited) |
 Beata TyszkiewiczBeata Tyszkiewicz (uncredited) | Beata Tyszkiewicz (uncredited) |
