Op kerstavond kan er van alles gebeuren. Mel moet nieuwe professionele uitdagingen aangaan en zich aanpassen aan de nieuwe normen die op het werk gelden. Dan zijn Karina en Stephan van plan om serieuze veranderingen door te voeren in de opvoeding van kinderen. Ze besluiten hun aanpak te veranderen en enigszins geavanceerde onderwijsmethoden toe te passen.
Nee, helaas is Listy do M. 4 nog niet beschikbaar op Netflix in Nederland.
| Camera | Marian Prokop | Director of Photography |
| Camera | Maciej Adamczyk | Assistant Camera |
| Sound | Łukasz Targosz | Original Music Composer |
| Production | Piotr Bartuszek | Casting |
| Writing | Marcin Baczyński | Writer |
| Writing | Mariusz Kuczewski | Writer |
| Camera | Ksawery Zylber | Camera Operator |
| Camera | Stanisław Horodecki | Camera Operator |
| Camera | Jakub Stolecki | Camera Operator |
| Camera | Robert Romaniuk | Aerial Camera |
| Camera | Vadim d' Erceville | Aerial Camera |
| Camera | Marek Zajączkowski | Aerial Camera |
| Camera | Adam Mendry | Steadicam Operator |
| Camera | Maciej Tomków | Steadicam Operator |
| Lighting | Artur Zabiegałowski | Master Lighting Artist |
| Camera | Mariusz Hargot | Grip |
| Camera | Krzysztof Hargot | Grip |
| Camera | Bartłomiej Piętka | Grip |
| Editing | Kamil Komorek | Digital Intermediate |
| Production | Aleksandra Rybołowicz | Data Management Technician |
| Visual Effects | Radosław Rekita | VFX Supervisor |
| Art | Marek Warszewski | Set Designer |
| Art | Joanna Kuś | Interior Designer |
| Art | Paweł Stachowiak | Props |
| Art | Adrian Sosnowski | Assistant Property Master |
| Art | Paweł Łuszczyński | Assistant Property Master |
| Art | Rafał Antoszkiewicz | Assistant Property Master |
| Costume & Make-Up | Małgorzata Bednarek-Chumakou | Costume Design |
| Costume & Make-Up | Adam Samsel | Assistant Costume Designer |
| Sound | Łukasz Targosz | Musician |
| Sound | Łukasz Targosz | Music Producer |
| Sound | Jacek Tarkowski | Musician |
| Sound | Jacek Tarkowski | Conductor |
| Sound | Jacek Tarkowski | Music Producer |
| Sound | Michał Górczyński | Musician |
| Sound | Sebastian Aleksandrowicz | Musician |
| Sound | Patrycja Bukowska | Music Consultant |
| Sound | Krzysztof Owczarek | Sound |
| Costume & Make-Up | Jolanta Madejska | Makeup Department Head |
| Crew | Jacek Kwaśniewski | Police Consultant |
| Crew | Wojciech Konkol | Health and Safety |
| Crew | Agata Wojciechowska | Public Relations |
| Crew | Adrian Luzar | Public Relations |
| Camera | Marcin Makowski | Still Photographer |
| Crew | Jacek Jeleń | Stunt Coordinator |
| Crew | Jacek Jeleń | Stunts |
| Crew | Zyta Bujacz-Dziel | Stunts |
| Crew | Beata Duda | Stunts |
| Crew | Dominika Jaworska | Stunts |
| Crew | Tomasz Lipski | Stunts |
| Crew | Janusz Mazurkiewicz | Stunts |
| Crew | Artur Mikołajewski | Stunts |
| Crew | Piotr Nawrocki | Stunts |
| Crew | Radosław Ozimkiewicz | Stunts |
| Crew | Paweł Poletyło | Stunts |
| Crew | Piotr Słupiński | Stunts |
| Crew | Aneta Kielak | Catering |
| Crew | Tomasz Blaszkowski | Catering |
| Crew | Jan Słupski | Catering |
| Production | Przemysław Malec | Production Manager |
| Production | Ewelina Król | Assistant Production Manager |
| Production | Natalia Łukawska | Assistant Production Manager |
| Production | Anna Waśniewska-Gill | Production Supervisor |
| Production | Marta Grela-Gorostiza | Supervising Producer |
| Sound | Radosław Adamski | Boom Operator |
| Sound | Krzysztof Bogucki | Boom Operator |
| Sound | Małgorzata Czuro | Sound Effects |
| Sound | Patryk Gąstoł | Sound Effects |
| Sound | Małgorzata Czuro | Sound Effects Editor |
| Sound | Grzegorz Koniarz | Sound Effects |
| Sound | Paweł Krajewski | Boom Operator |
| Sound | Krzysztof Owczarek | Dialogue Editor |
| Sound | Krzysztof Owczarek | Sound Recordist |
| Sound | Maciej Pawłowski | Dialogue Editor |
| Sound | Jacek Rychły | ADR Recordist |
| Sound | Jacek Rychły | ADR Editor |
| Sound | Grzegorz Sieradzki | Sound Effects |
| Sound | Grzegorz Sieradzki | Sound Effects Editor |
| Sound | Łukasz Świerzawski | Sound Designer |
| Sound | Łukasz Świerzawski | Sound Editor |
| Sound | Łukasz Świerzawski | Sound Effects Editor |
| Sound | Jacek Tarkowski | ADR Recordist |
| Sound | Łukasz Tuński | Boom Operator |
| Directing | Patrick Yoka | Director |
| Production | Tomasz Blachnicki | Producer |
| Production | Marta Pasławska | Producer's Assistant |
| Production | Przemysław Malec | Production Coordinator |
| Editing | Jarosław Barzan | Editorial Coordinator |
| Art | Marek Warszewski | Art Direction |
| Sound | Maciej Pawłowski | Sound |
| Sound | Przemysław Kamieński | Sound |
| Art | Janusz Bieniek | Title Designer |
