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