Olivia Colman Donka (voice)
Jack Dylan Grazer Barney (voice)
Zach Galifianakis Ron (voice)
Tristan Allerick Chen Additional Voices (voice)
Ed Helms Graham (voice)
Justice Smith Marc (voice)
Mike Prestwood Smith Sound Re-Recording Mixer
Flula Borg Additional Voices (voice)
Phil LaMarr Additional Voices (voice)
Sim Evan-Jones Additional Editor
Matt Dunkley Conductor
Nathan Crowley Production Design
Kylie Cantrall Savannah (voice)
Marcus Scribner Alex (voice)
David Park Associate Producer
Rob Delaney Andrew (voice)
Thomas Barbusca Jayden (voice)
Karen de Jong Art Direction
Jadon Sand Additional Voices (voice)
David Menkin Shayne The Biker / Mr. Cleaver (voice)
Peter Baynham Executive Producer, Writer
John Macmillan Bubble Techs (voice)
Bentley Kalu Cop (voice)
Ricardo Hurtado Rich (voice)
Liam Payne Songs
Henry Jackman Original Music Composer
George Hull Concept Artist
Cullen McCarthy Noah (voice)
Ruby Wax Ms. Hartley (voice)
Octavio E. Rodriguez Additional Voices (voice), Co-Director
Ava Morse Ava (voice)
Dave Bayley Songs
Carter Goodrich Character Designer
Kevin Cecil Additional Writing
David Burrows Editor
Nick Sung Additional Storyboarding
Tom Jacomb Co-Producer
Megan Maczko Miss Thomas (voice)
Stephen Coleman Orchestrator
Ashley Boddy Head of Story
Sylvain Marc Character Designer
Elisabeth Murdoch Executive Producer
Andrew Kinney Orchestrator
Till Nowak Art Direction
Jean-Philippe Vine Lead Character Designer, Director
Michael Lloyd Orchestrator
Christian Kaplan Casting
Ian Abando Additional Storyboarding
Tomas Blazukas Sound Effects Editor
Kris Pearn Thanks
Seamus Malone Animation Supervisor
Sarah Smith Executive Producer, Director, Writer
ND Stevenson Additional Writing
Aurélien Predal Production Design
Andy Riley Additional Writing
Tim Watts Animation Supervisor
Krupa Pattani Sita (voice)
Eric Leighton Animation Director
Lara Breay Producer
Julie Lockhart Producer
Andrew Gordon Animation Supervisor
Dean Roberts Storyboard Artist
Julien Bizat Lead Character Designer
Alessandra Sorrentino Storyboard Artist
Mike Smith Additional Storyboarding
Philippe Denis Visual Effects Supervisor
John Addis Additional Editor
Simon Rieber Visual Development
Crosby Clyse Digital Producer
Carlos Grangel Character Designer
Gleb Sanchez-Lobashov Additional Storyboarding
Santiago Colomo Martinez Animation Supervisor