J.K. Simmons Klaus (voice)
Jason Schwartzman Jesper (voice)
Joan Cusack Mrs. Krum (voice)
Rashida Jones Alva (voice)
Will Sasso Mr. Ellingboe (voice)
Norm Macdonald Mogens (voice)
Zara Larsson Songs
John Pomeroy Animation
Finn Carr Ellingboe Boy 1 (voice)
Hudson West Additional Kids Voices (voice)
Mark Osborne Thanks
Tucker Meek Ellingboe Boy / Krum Boy (voice)
Emma Shannon Creepy girl 1 (voice)
Jim Mahoney Screenplay
Sergio Pablos Producer, Original Story, Director, Screenplay, Pumpkin / Olaf (voice)
Mila Brener Ellingboe Girl 3 (voice)
Matthew Jon Beck Casting
Lucian Perez Krum Boy / Creepy Boy 2 (voice)
Jaeden Bettencourt Krum Boy / Jesper Son (voice)
Andrew Chesworth Animation
Marisa Román Producer
Mercedes Gamero Producer
Toby Schwarz Animation
Alan Tyler Additional Music
Jorge R. Gutierrez Thanks
Tony Fucile Animation
Zach Lewis Screenplay
Melissa Cobb Thanks
Mikel Lejarza Producer
Julian Zane Krum Boy (voice)
Amanda Philipson Ellingboe Councilwoman (voice)
Rodrigo Blaas Thanks
Damien de Froberville Thanks
Evan Agos Ellingboe Boy (voice)
Szymon Biernacki Production Design
Neda Margrethe Labba Margu (voice)
David Vandervoort Animation
Caroline Piochon Animation
Hailey Hermida Krum Girl 1 (voice)
Slaven Reese Lead Animator
Borja Montoro Animation
Paul Cichocki Thanks
Maria Torregosa Domenech Animation
Joaquin Obradors Boy (voice)
James Baxter Animation
Sky Alexis Ellingboe Girl 2 (voice)
Taha Neyestani Storyboard Artist
Clément Girard Animation
Alfredo Cassano Lead Animator
Sydney Brower Ellingboe Girl (voice)
Mael Gourmelen Animation
Gustavo Ferrada Producer
Jinko Gotoh Producer
Valentin Lucas Animation
Yoshimichi Tamura Lead Animator
Carlos Sotolongo Dialogue Editor
Eamonn Butler Executive Producer
Alex Orrelle Animation
Sandro Cleuzo Animation
Cécile Carre Animation
Ayden Soria Creepy Boy 1 (voice)
Olivier Mouroux Thanks
Eve Guastella Animation
Sunny Park Thanks
Olivier Clert Animation
Matthew McCann Additional Kids Voices (voice)
Pauline Champetier Animation
Jorge A. Capote Animation
Fernando Moro Animation
Alfonso G. Aguilar Original Music Composer
Tanguy Olivier Producer
Torsten Schrank Character Designer