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