After graduating from maritime school, Marek goes on his first voyage.
| Actor | Role |
|---|---|
 Henryk BąkCaptain | Captain |
 Andrzej PiszczatowskiMarek Kolczyński | Marek Kolczyński |
 Krzysztof ChamiecChief | Chief |
 Leonard AndrzejewskiMechanic | Mechanic |
 Krystyna BorowiczMarysia | Marysia |
 Leszek DrogoszKarol | Karol |
 Janusz KłosińskiJózef Wójcik | Józef Wójcik |
| BBożena KowalczykGirl | Girl |
 Mieczysław ŁozaSailor | Sailor |
| LLudomir OlszewskiElectrician | Electrician |
| AAndrzej BielskiNot listed | Not listed |
| AAndrzej ErchardNot listed | Not listed |
 Jerzy JaneczekNot listed | Not listed |
| AAndrzej KrasickiOfficer | Officer |
 Cezary KussykNot listed | Not listed |
 Zdzisław KuźniarSailor | Sailor |
 Edward Linde-LubaszenkoSecond Officer | Second Officer |
| SStanisław Wojciech MalecSailor | Sailor |
 Andrzej MrozekSailor | Sailor |
 Jerzy Zygmunt NowakSailor | Sailor |
| MMedard PlewackiNot listed | Not listed |
 Witold PyrkoszKarol (voice) | Karol (voice) |
| II. SenraNot listed | Not listed |
 Tadeusz SkorulskiNot listed | Not listed |
| AA. WilikNot listed | Not listed |
 Kazimierz OstrowiczSailor (uncredited) | Sailor (uncredited) |