The Investigation (1974) — Cast
Cast
| Marek Gołębiowski | |
| Bogumił Antczak | Policeman |
| Andrzej Jurczak | Byron Williams |
| Ewa Zdzieszyńska | |
| Jan Kasprzykowski | Policeman |
| Bolesław Abart | Farquart |
| Edmund Fetting | Sheb Sheppard |
| Ireneusz Kaskiewicz | Airport Bartender |
| Mieczysław Janowski | Thomas |
| Tadeusz Borowski | Gregory |
| Zygmunt Zintel | Cemetery Presider |
| Tadeusz Schmidt | Sherwood Morrill |
| Jerzy Przybylski | Sciss |
| Zbigniew Lesień | Colls |
| Maciej Grzybowski | Booking Sergeant |
| Janusz Mazanek | Plays |
| Ferdynand Matysik | Sorensen |
| Henryk Hunko | Mourner |
| Piotr Krukowski | Mactilburgh's Assistant |
| Eugeniusz Korczarowski | Military Technician |
| Zbigniew Geiger | Booking Sergeant |
| Róża Czaplewska | Sister Louie |
| Edward Radulski | Ian |
Crew
| Witold Holtz | First Assistant Director |
| Włodzimierz Nahorny | Original Music Composer |
| Teresa Olszewska | Assistant Director |
| Jerzy Groszang | Production Design |
| Kazimierz Sioma | Assistant Production Manager |
| Eugeniusz Kapelak | Assistant Production Design |
| Andrzej Rafał Waltenberger | Assistant Production Design |
| Andrzej Kotkowski | Screenplay |
| Edward Kłosiński | Director of Photography |
| Józef Letkier | Assistant Camera |
| Mirosław Migurski | Production Coordinator |
| Ludwik Stanisławski | Assistant Camera |
| Andrzej Wohl | Assistant Director |
| Andrzej Perz | Assistant Director |
| Janusz Wojtowicz | Production Coordinator |
| Wiesława Starska | Costume Design |
| Jacek Malipan | Camera Operator |
| Zbigniew Przygodzki | Sound Assistant |
| Grzegorz Woźniak | Production Manager |
| Włodzimierz Nahorny | Conductor |
| Jerzy Wroński | Sound |
| Irena Włodarczyk | Costume Assistant |
| Zdzislawa Namyslaw | Makeup Artist |
| Aurelia Rut | Assistant Editor |
| Alina Faflik | Editor |
| Stanisław Lem | Novel |
| Marek Piestrak | Screenplay |
| Marek Piestrak | Director |