Een onhandige jongeman opent een postkantoor in een afgelegen dorp in het Noorden. Het enige probleem? Niemand schrijft er brieven. Aan zijn eenzame en werkloze bestaan tussen de norse bewoners komt een einde wanneer hij bevriend raakt met een bijzondere (Kerst)man, een speelgoedmaker genaamd Klaus.
| Production | Eamonn Butler | Executive Producer |
| Production | Tanguy Olivier | Producer |
| Visual Effects | Olivier Clert | Animation |
| Production | Gustavo Ferrada | Producer |
| Art | Szymon Biernacki | Production Design |
| Production | Warren Franklin | Executive Producer |
| Production | Matthew Jon Beck | Casting |
| Visual Effects | Alex Orrelle | Animation |
| Production | Mercedes Gamero | Producer |
| Production | Jinko Gotoh | Executive Producer |
| Visual Effects | Borja Montoro | Animation |
| Visual Effects | Matt Williames | Lead Animator |
| Production | Marisa Román | Producer |
| Visual Effects | Tom Sales | Animation |
| Visual Effects | Maxime Delalande | Animation |
| Visual Effects | Torsten Schrank | Character Designer |
| Visual Effects | Yoshimichi Tamura | Animation |
| Visual Effects | Charlie Bonifacio | Lead Animator |
| Visual Effects | Jorge A. Capote | Animation |
| Directing | Sergio Pablos | Director |
| Production | Sergio Pablos | Producer |
| Sound | Carlos Sotolongo | Dialogue Editor |
| Production | Mikel Lejarza | Producer |
| Visual Effects | Victor Ens | Lead Animator |
| Production | Micah Dahlberg | Producer |
| Production | Micah Dahlberg | Casting |
| Directing | Carlos Martínez López | Co-Director |
| Editing | Pablo García Revert | Editor |
| Art | Marcin Jakubowski | Production Design |
| Crew | Alan Tyler | Additional Music |
| Writing | Zach Lewis | Screenplay |
| Writing | Jim Mahoney | Screenplay |
| Writing | Sergio Pablos | Original Story |
| Writing | Sergio Pablos | Screenplay |
| Writing | Edgar Martins | Head of Story |
| Sound | Alfonso G. Aguilar | Original Music Composer |
| Visual Effects | Daniel Fernandez-Casas | Character Designer |
