Een egoïstische postbode en een eenzame speelgoedmaker sluiten een onvoorstelbare vriendschap. Ze brengen blijdschap in een koude, donkere stad die het hard nodig heeft.
| Sound | Alfonso G. Aguilar | Original Music Composer |
| Writing | Zach Lewis | Screenplay |
| Writing | Jim Mahoney | Screenplay |
| Writing | Sergio Pablos | Original Story |
| Writing | Sergio Pablos | Screenplay |
| Writing | Edgar Martins | Head of Story |
| Visual Effects | Daniel Fernandez-Casas | Character Designer |
| Directing | Sergio Pablos | Director |
| Production | Eamonn Butler | Executive Producer |
| Production | Gustavo Ferrada | Producer |
| Production | Warren Franklin | Executive Producer |
| Production | Mercedes Gamero | Producer |
| Production | Jinko Gotoh | Executive Producer |
| Production | Mikel Lejarza | Producer |
| Production | Tanguy Olivier | Producer |
| Production | Sergio Pablos | Producer |
| Production | Marisa Román | Producer |
| Production | Matthew Jon Beck | Casting |
| Production | Micah Dahlberg | Producer |
| Art | Szymon Biernacki | Production Design |
| Sound | Carlos Sotolongo | Dialogue Editor |
| Visual Effects | Jorge A. Capote | Animation |
| Visual Effects | Olivier Clert | Animation |
| Visual Effects | Maxime Delalande | Animation |
| Visual Effects | Victor Ens | Lead Animator |
| Visual Effects | Borja Montoro | Animation |
| Visual Effects | Alex Orrelle | Animation |
| Visual Effects | Tom Sales | Animation |
| Visual Effects | Torsten Schrank | Character Designer |
| Visual Effects | Matt Williames | Lead Animator |
| Directing | Carlos Martínez López | Co-Director |
| Editing | Pablo García Revert | Editor |
| Production | Micah Dahlberg | Casting |
| Art | Marcin Jakubowski | Production Design |
| Crew | Alan Tyler | Additional Music |
| Visual Effects | Charles Bonifacio | Lead Animator |
| Art | Taha Neyestani | Storyboard Artist |
| Visual Effects | Sergio Martins | Lead Animator |
| Visual Effects | Slaven Reese | Lead Animator |
| Visual Effects | Alfredo Cassano | Lead Animator |
| Visual Effects | Jochem Van Gool | Lead Animator |
| Visual Effects | James Baxter | Animation |
| Visual Effects | Samuel Cabanac | Animation |
| Visual Effects | Simone Cirillo | Animation |
| Visual Effects | Daniel Thomas Crook | Animation |
| Visual Effects | Clément Girard | Animation |
| Visual Effects | Rapeepat Jewanarom | Animation |
| Visual Effects | Carlos Luzzi | Animation |
| Visual Effects | Sergio Mateo Merino | Animation |
| Visual Effects | Tracy Nowocien | Animation |
| Visual Effects | Toby Schwarz | Animation |
| Visual Effects | Marc Valls Pla | Animation |
| Visual Effects | Giovanni Braggio | Animation |
| Visual Effects | Cécile Carre | Animation |
| Visual Effects | Sandro Cleuzo | Animation |
| Visual Effects | Eve Guastella | Animation |
| Visual Effects | Ole Christian Løken | Animation |
| Visual Effects | Jorge Duran Llanos | Animation |
| Visual Effects | Joseph Meredith | Animation |
| Visual Effects | Daniel O'Sullivan | Animation |
| Visual Effects | Len Simon | Animation |
| Visual Effects | David Vandervoort | Animation |
| Visual Effects | Alvise Zennaro | Animation |
| Visual Effects | Jeremie Becquer | Animation |
| Visual Effects | Andrew Chesworth | Animation |
| Visual Effects | Laura Cobo | Animation |
| Visual Effects | Tony Fucile | Animation |
| Visual Effects | Mael Gourmelen | Animation |
| Visual Effects | Valentin Lucas | Animation |
| Visual Effects | Cristina De Manuel | Animation |
| Visual Effects | Fernando Moro | Animation |
| Visual Effects | Caroline Piochon | Animation |
| Visual Effects | Tugrul Tiryaki | Animation |
| Visual Effects | Alain Vu | Animation |
| Visual Effects | Desi Garrido | Animation |
| Visual Effects | José Mansuy | Animation |
| Visual Effects | Álvaro Morote | Animation |
| Visual Effects | Eduardo Quintana | Animation |
| Visual Effects | Maria Torregosa Domenech | Animation |
| Visual Effects | Pauline Champetier | Animation |
| Visual Effects | Arturo Hernández Correas | Animation |
| Visual Effects | Sergio Molinero Garçia | Animation |
| Visual Effects | Pablo Navarro | Animation |
| Visual Effects | Joshua Schneider | Animation |
| Visual Effects | Mathilde Vachet | Animation |
| Visual Effects | Javier Ferrer | Animation |
| Visual Effects | Carlos Linares-Rivas Rodríguez | Animation |
| Visual Effects | John Pomeroy | Animation |
| Visual Effects | Marcel Tigchelaar | Animation |
| Visual Effects | Paul Williams | Animation |
| Visual Effects | Yoshimichi Tamura | Lead Animator |
