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.
| Sound | Alfonso G. Aguilar | Original Music Composer |
| Writing | Jim Mahoney | Screenplay |
| Writing | Zach Lewis | Screenplay |
| Writing | Edgar Martins | Head of Story |
| Writing | Sergio Pablos | Screenplay |
| Writing | Sergio Pablos | Original Story |
| Visual Effects | Daniel Fernandez-Casas | Character Designer |
| Production | Matthew Jon Beck | Casting |
| Production | Gustavo Ferrada | Producer |
| Production | Sergio Pablos | Producer |
| Sound | Carlos Sotolongo | Dialogue Editor |
| Visual Effects | Yoshimichi Tamura | Animation |
| Visual Effects | Torsten Schrank | Character Designer |
| Art | Szymon Biernacki | Production Design |
| Visual Effects | Alex Orrelle | Animation |
| Directing | Sergio Pablos | Director |
| Production | Mercedes Gamero | Producer |
| Visual Effects | Borja Montoro | Animation |
| Production | Eamonn Butler | Executive Producer |
| Production | Marisa Román | Producer |
| Visual Effects | Matt Williames | Lead Animator |
| Visual Effects | Victor Ens | Lead Animator |
| Production | Jinko Gotoh | Executive Producer |
| Production | Mikel Lejarza | Producer |
| Production | Tanguy Olivier | Producer |
| Visual Effects | Maxime Delalande | Animation |
| Production | Warren Franklin | Executive Producer |
| Production | Micah Dahlberg | Producer |
| Visual Effects | Jorge A. Capote | Animation |
| Visual Effects | Olivier Clert | Animation |
| Visual Effects | Tom Sales | Animation |
| Editing | Pablo García Revert | Editor |
| Directing | Carlos Martínez López | Co-Director |
| Production | Micah Dahlberg | Casting |
| Art | Marcin Jakubowski | Production Design |
| Crew | Alan Tyler | Additional Music |
| Visual Effects | Charles Bonifacio | Lead Animator |
