 | Meryl Streep als Narrator (voice) |
 | Jacob Tremblay als Finn (voice) |
 | Chris O'Dowd als Finn's Dad (voice) |
 | Ruth Negga als Finn's Mum (voice) |
 | Rob Rackstraw als Crowd Voice (voice) |
| Sue Goffe | Producer |
| Philip Hunt | Director |
| Alex Somers | Original Music Composer |
| Luke Matheny | Writer |
| Philip Hunt | Writer |
| Oliver Jeffers | Story |
| Philip Hunt | Executive Producer |
| Oliver Jeffers | Executive Producer |
| Angela Edmonds | Producer |
| Laurent Rossi | Animation Supervisor |
| Michael Griggs | Sound Assistant |
| Avital Korin | Music Editor |
| Robert Ames | Additional Music |
| Marcus Armitage | 2D Supervisor |
| Lauren Adassovsky | 3D Animator |
| Anne Moth | 3D Animator |
| Matthew Armitage | 2D Artist |
| Dominic Dew | Sound Engineer |
| David Poole | Sound Engineer |
| Dermot Flynn | Production Designer |
| Kristian Fjellerup Olesen | Modeling |
| Alex Campbell | Production Accountant |
| Olafur Bjorn Olafsson | Musician |
| Michael Griggs | Assistant Sound Editor |
| Maria Chamberlain | Colorist |
| James Gaillard | Compositor |
| Fabrice Altman | Technical Supervisor |
| Martin Minsel | Pipeline Technical Director |
| Olafur Bjorn Olafsson | Additional Production Sound Mixer |
| Manddy Wyckens | Art Direction |
| Doug Hindson | Production Designer |
| Manon Sailly | Rigging Gaffer |
| Elise Tewedros | Modeling |
| Agathe Trebosc | Compositor |
| Steve Small | Storyboard Artist |
| Robert Ames | Additional Production Sound Mixer |
| Hildur Ársælsdóttir | Musician |
| Edda Rún Ólafsdóttir | Musician |
| María Huld Markan Sigfúsdóttir | Musician |
| Joe Dennis | Production Designer |
| Oliver Jeffers | Production Designer |
| Jessica Robinson | Modeling |
| Justine Waldie | 2D Artist |
| Kat Seale | Pre-Visualization Coordinator |
| Marcus Armitage | Storyboard Artist |
| Jess Bell | Production Coordinator |
| Birgir Jón Birgisson | Additional Production Sound Mixer |
| Róbert Sturla Reynisson | Musician |
| Joshua Crew | Modeling |
| Adam O'Sullivan Avery | Modeling |
| Valérie Guichard | Compositor |
| Rob Chapman | CG Animator |
| Lauren Adassovsky | Pre-Visualization Coordinator |
| Michael Ridley | Legal Services |
| Alina Bopele | 3D Animator |
| Aziz Kocanaogullari | 3D Animator |
| Guillaume Glachant | Pre-Visualization Coordinator |
| Andrea Simonti | Storyboard Artist |
| Sólrún Sumarliðadóttir | Musician |
| Alaska Reid | Musician |
| Sin Fang | Music Score Producer |
| Manddy Wyckens | Production Designer |
| William Eagar | Compositor |
| Matthias Cuciniello | 2D Artist |
| Inès Pagniez | Pre-Visualization Coordinator |
| Andrea Simonti | Pre-Visualization Coordinator |
| Beverly Yeang | Production Manager |
| Robert Ames | Musician |
| Stuart Allen-Hynd | Sound Engineer |
| Daniel Garnerone | Compositor |
| Justine Waldie | Storyboard Artist |
| Henry Weickert | Pipeline Technical Director |
| Ronnie Mukwaya | Mix Technician |
| Nic Gill | Editor |
| Matthew Stephenson | 3D Animator |
| Andrea Simonti | 3D Animator |
| Sin Fang | Additional Music |
| Aude Carpentier | Storyboard Artist |
| Laurent Rossi | 3D Animator |
| James Gaillard | CG Supervisor |
| Joachim Loesener | Modeling |
| Agathe Trebosc | Modeling |
| Clarisse Valeix | Compositor |
| Deniz Cinar | CG Animator |
| Lucas Vigroux | Pre-Visualization Coordinator |
| Doug Cooper | Sound Mixer |
| Kat Seale | 3D Animator |
| Lucas Vigroux | 3D Animator |
| Arthur Ranson | Rigging Gaffer |
| Kiki Pela | Modeling |
| Jonathan Vuillemin | Compositor |
| James Howarth | Production Accountant |
| Jeroen Hooghoudt | Pipeline Technical Director |
| Claire Pegorier | Pipeline Technical Director |
| Sin Fang | Music Producer |
| Kjartan Hólm | Additional Production Sound Mixer |
| Anthony Bayman | Assistant Sound Editor |
| Marthe Delaporte | 3D Animator |
| Jonathan Vuillemin | Modeling |
| Chara Sottou | Compositor |
| Lucas Vigroux | Pre-Visualization Supervisor |
| Marc Craste | Storyboard Artist |
| Adrian Rhodes | Sound Designer |
| Marie Touly | Production Designer |
| Guillaume Glachant | 3D Director |
| Natasha Ninni | 3D Animator |
| Adam O'Sullivan Avery | Rigging Supervisor |
| Daniel Garnerone | Modeling |
| Ellie Goffe | Production Assistant |
| Jérôme Ferra | Modeling |
| Vincent Husset | Lighting Supervisor |
| Jérôme Ferra | Compositor |
| Vincent Husset | Compositor |
| Sharon Smith | Storyboard Artist |
| Rob Farris | Post-Production Manager |
| Steve Small | Production Design |
| Peter Dodd | 2D Artist |
