Hans en Jan Bitner leven aan weerszijden van het IJzeren Gordijn. Hans woont in Frankrijk, hij leidt een rustig leven. Bitner is een Pool, betrokken bij de strijd voor een vrij Polen. Hun levens zijn verschillend, maar er is één detail dat hen verbindt.
Nee, helaas is Doppelgänger. Sobowtór nog niet beschikbaar op Netflix in Nederland.
| Sound | Przemysław Kamieński | Sound |
| Sound | Kacper Habisiak | Sound |
| Sound | Marcin Kasiński | Sound |
| Camera | Robert Pałka | Still Photographer |
| Crew | Piotr Wojtkowski | Stunt Double |
| Camera | Krzysztof Bukowski | Camera Operator |
| Production | Mateusz Smereczyński | Data Management Technician |
| Art | Karolina Kempińska | Assistant Set Designer |
| Sound | Marcin Kasiński | Sound Director |
| Sound | Adam Szlenda | Dialogue Editor |
| Sound | Filip Krzyżykowski | Sound Effects Editor |
| Crew | Tomasz Bykowski | Pyrotechnician |
| Crew | Janusz Bykowski | Pyrotechnician |
| Crew | Jarosław Miksa | Pyrotechnician |
| Crew | Błażej Litwiński | Pyrotechnician |
| Crew | Mariusz Żwierko | Translator |
| Sound | Jan Komar | Musician |
| Sound | Dawid Konecki | Sound Effects Editor |
| Crew | Marek Krucz | Catering |
| Editing | Sebastian Korwin-Kulesza | Assistant Editor |
| Crew | Maciej Romanowski | Stunts |
| Crew | Konrad Ostrowski | Stunts |
| Crew | Maria Ortwein | Translator |
| Crew | Wojciech Konkol | Health and Safety |
| Crew | Dariusz Obrębski | Stunts |
| Camera | Tomasz Pawlik | Camera Operator |
| Visual Effects | Marcin Malewski | VFX Supervisor |
| Crew | Maksym Andosenka | Acting Double |
| Crew | Aneta Kielak | Catering |
| Art | Marek Warszewski | Set Designer |
| Directing | Franciszek Przybylski | Second Unit Director |
| Camera | Franciszek Przybylski | Second Unit Director of Photography |
| Directing | Krzysztof Kwiatkowski | Assistant Director |
| Editing | Cezary Grzesiuk jr | Dailies Manager |
| Art | Maciej Fajst | Set Designer |
| Art | Mariusz Kowalski | Props |
| Sound | Agnieszka Kulczycka | Music Consultant |
| Production | Łukasz Sylwester | Data Management Technician |
| Art | Michał Burakowski | Props |
| Art | Szymon Szczęsny | Assistant Property Master |
| Art | Mirosław Michał Opaliński | Assistant Property Master |
| Sound | Aleksandra Dzioba | Dialogue Editor |
| Production | Michał Marceli Kowalski | Assistant Production Manager |
| Camera | Grzegorz Falba | Grip |
| Crew | Katarzyna Więcławska | Translator |
| Lighting | Adam Napora | Master Lighting Artist |
| Art | Karolina Kosicka | Interior Designer |
| Costume & Make-Up | Anna Kozłowska | Assistant Costume Designer |
| Costume & Make-Up | Justyna Osińska | Makeup Department Head |
| Crew | Filip Bucki | Stunts |
| Crew | Piotr Wojtkowski | Stunts |
| Camera | Michał Czachorowski | Aerial Camera |
| Art | Michał Partyka | Assistant Property Master |
| Costume & Make-Up | Mirela Zawiszewska | Makeup & Hair Assistant |
| Crew | Maria Majer | Public Relations |
| Crew | Maciej A. Maciejewski | Stunt Coordinator |
| Crew | Anna Król | Translator |
| Camera | Michał Szymański | Grip |
| Costume & Make-Up | Agnieszka Kozyra | Assistant Costume Designer |
| Camera | Jarosław Sosiński | Still Photographer |
| Crew | Jacek Bykowski | Pyrotechnician |
| Sound | Jan Komar | Original Music Composer |
| Sound | Michał Jaros | Musician |
| Sound | Jan Młynarski | Musician |
| Sound | Aneta Brykalska | Music Consultant |
| Crew | Witold Wajtach | Pyrotechnician |
| Crew | Grzegorz Reda | Stunts |
| Crew | Michał Pluskota | Stunts |
| Crew | Mateusz Brenner | Stunts |
| Editing | Marek Lechowicz | Dailies Manager |
| Costume & Make-Up | Anna Janowska | Assistant Costume Designer |
| Crew | Piotr Wojtkowski | Acting Double |
| Crew | Jacek Śmierzyński | Pyrotechnician |
| Crew | Michał Burdan | Stunts |
| Crew | Jarosław Tumilewicz | Catering |
| Art | Grzegorz Nawrocki | Assistant Property Master |
| Sound | Piotr Zabrodzki | Musician |
| Crew | Tomasz Lipski | Stunts |
| Crew | Wiktor Cichocki | Catering |
| Production | Anna Dobies | Administration |
| Camera | Waldemar Matynia | Grip |
| Editing | Mateusz Budnik | Digital Intermediate |
| Directing | Franciszek Przybylski | Assistant Director |
| Camera | Klaudiusz Warszewski | Camera Operator |
| Art | Kinga Babczyńska | Interior Designer |
| Costume & Make-Up | Ewelina Cnota | Assistant Makeup Artist |
| Crew | Neil Fornalik | Translator |
| Crew | Michał Wiktorowicz | Translator |
| Production | Łukasz Poniński | Production Supervisor |
| Production | Marta Grela-Gorostiza | Production Supervisor |
| Sound | Ewa Mazurkiewicz | Dialogue Editor |
| Crew | Andrzej Wnek | Pyrotechnician |
| Crew | Łukasz Czubak | Stunts |
| Crew | Martin Sobczyk | Translator |
| Crew | Adam Bieniek | Catering |
| Crew | Mateusz Brenner | Acting Double |
| Crew | Marcin Kudla | Pyrotechnician |
| Crew | Dominika Zielińska | Catering |
| Crew | Andrzej Iwaniuk | Catering |
| Production | Anna Waśniewska-Gill | Production Supervisor |
| Writing | Andrzej Gołda | Writer |
| Camera | Bartłomiej Kaczmarek | Director of Photography |
| Writing | Jan Holoubek | Co-Writer |
| Directing | Jan Holoubek | Director |
| Production | Anna Waśniewska-Gill | Producer |
| Costume & Make-Up | Weronika Orlińska | Costume Design |
| Production | Żywia Kosińska | Casting Director |
| Production | Tomasz Parnowski | Production Manager |
| Sound | Paweł Krajewski | Boom Operator |
| Sound | Łukasz Tuński | Boom Operator |
| Editing | Rafał Listopad | Editor |
| Costume & Make-Up | Mirela Zawiszewska | Makeup Department Head |
| Sound | Jacek Wiśniewski | Foley Supervisor |
| Sound | Kamil Kwiatkowski | Foley Editor |
