 | Zach Galifianakis als Ron (voice) |
 | Jack Dylan Grazer als Barney (voice) |
 | Ed Helms als Graham (voice) |
 | Olivia Colman als Donka (voice) |
 | Justice Smith als Marc (voice) |
 | Rob Delaney als Andrew (voice) |
 | Kylie Cantrall als Savannah (voice) |
 | Ricardo Hurtado als Rich (voice) |
 | Marcus Scribner als Alex (voice) |
 | Thomas Barbusca als Jayden (voice) |
 | Ruby Wax als Ms. Hartley (voice) |
 | Ava Morse als Ava (voice) |
 | Krupa Pattani als Sita (voice) |
 | John Macmillan als Bubble Techs (voice) |
 | Megan Maczko als Miss Thomas (voice) |
 | David Menkin als Shayne The Biker / Mr. Cleaver (voice) |
 | Tristan Allerick Chen als Additional Voices (voice) |
 | Jadon Sand als Additional Voices (voice) |
 | Octavio E. Rodriguez als Additional Voices (voice) |
 | Cullen McCarthy als Noah (voice) |
 | Flula Borg als Additional Voices (voice) |
 | Phil LaMarr als Additional Voices (voice) |
| Peter Baynham | Writer |
| Jean-Philippe Vine | Director |
| Octavio E. Rodriguez | Co-Director |
| Julie Lockhart | Producer |
| Henry Jackman | Original Music Composer |
| David Peers | Director of Photography |
| Nathan Crowley | Production Design |
| Aurélien Predal | Production Design |
| Sarah Smith | Director |
| Lara Breay | Producer |
| Peter Baynham | Executive Producer |
| Elisabeth Murdoch | Executive Producer |
| Sarah Smith | Executive Producer |
| Till Nowak | Art Direction |
| Tomas Blazukas | Sound Effects Editor |
| Simon Rieber | Visual Development |
| Liam Payne | Songs |
| Dave Bayley | Songs |
| Ashley Boddy | Head of Story |
| Karen de Jong | Art Direction |
| Eric Leighton | Animation Director |
| Philippe Denis | Visual Effects Supervisor |
| David Park | Associate Producer |
| David Burrows | Editor |
| Christian Kaplan | Casting |
| Kapil Sharma | Animation Supervisor |
| Steven J. Meyer | Animation Supervisor |
| Gokulakrishnan Mani | Animation Supervisor |
| Tim Watts | Animation Supervisor |
| Gianluca Fratellini | Animation Supervisor |
| Andrew Gordon | Animation Supervisor |
| Seamus Malone | Animation Supervisor |
| Santiago Colomo | Animation Supervisor |
| Tom Jacomb | Co-Producer |
| Crosby Clyse | Digital Producer |
| ND Stevenson | Additional Writing |
| Andy Riley | Additional Writing |
| Kevin Cecil | Additional Writing |
| Helen Schroeder | Storyboard Artist |
| Lewie Herr | Storyboard Artist |
| Arina Horczynski | Storyboard Artist |
| Adrian Maganza | Storyboard Artist |
| Max Perkins | Storyboard Artist |
| Dean Roberts | Storyboard Artist |
| Vitor Sérgio Sampaio | Storyboard Artist |
| Alessandra Sorrentino | Storyboard Artist |
| Mike Smith | Additional Storyboarding |
| Ian Abando | Additional Storyboarding |
| Nick Nason | Additional Storyboarding |
| Remi Crosasso | Additional Storyboarding |
| Gleb Sanchez-Lobashov | Additional Storyboarding |
| Louis Hynd | Additional Storyboarding |
| Carlos Lutterbach | Additional Storyboarding |
| Nick Sung | Additional Storyboarding |
| Carter Goodrich | Character Designer |
| Carlos Grangel | Character Designer |
| Malte Lauinger | Character Designer |
| Sylvain Marc | Character Designer |
| Joe Mosier | Character Designer |
| Sim Evan-Jones | Additional Editor |
| Jean-Philippe Vine | Lead Character Designer |
| Julien Bizat | Lead Character Designer |
| James Cooper | Additional Editor |
| John Addis | Additional Editor |
| Matt Dunkley | Conductor |
| Stephen Coleman | Orchestrator |
| Andrew Kinney | Orchestrator |
| Michael Lloyd | Orchestrator |
| Kris Pearn | Thanks |
| Stacey Snider | Thanks |
| Mark Devereux | Thanks |
| Olivier Gers | Thanks |
| Sarah Smith | Writer |
