Rashida Jones Alva (voice)
J.K. Simmons Klaus (voice)
Jason Schwartzman Jesper (voice)
Norm Macdonald Mogens (voice)
Joan Cusack Mrs. Krum (voice)
Will Sasso Mr. Ellingboe (voice)
Alan Tyler Additional Music
Zach Lewis Screenplay
Micah Dahlberg Producer, Casting
Julian Zane Krum Boy (voice)
Finn Carr Ellingboe Boy 1 (voice)
Emma Shannon Creepy girl 1 (voice)
Maxime Delalande Animation
Mila Brener Ellingboe Girl 3 (voice)
Lucian Perez Krum Boy / Creepy Boy 2 (voice)
Tucker Meek Ellingboe Boy / Krum Boy (voice)
Hudson West Additional Kids Voices (voice)
Matthew McCann Additional Kids Voices (voice)
Sergio Pablos Director, Producer, Pumpkin / Olaf (voice), Original Story, Screenplay
Jim Mahoney Screenplay
Teddy Blum Small Ellingboe Boy (voice)
Warren Franklin Executive Producer
Marisa Román Producer
Jaeden Bettencourt Krum Boy / Jesper Son (voice)
Neda Margrethe Labba Margu (voice)
Mercedes Gamero Producer
Jinko Gotoh Executive Producer
Kendall Joy Hall Annelise (voice)
Alex Orrelle Animation
Matthew Jon Beck Casting
Sydney Brower Ellingboe Girl (voice)
Eamonn Butler Executive Producer
Mikel Lejarza Producer
Carlos Sotolongo Dialogue Editor
Amanda Philipson Ellingboe Councilwoman (voice)
Gustavo Ferrada Producer
Sky Alexis Ellingboe Girl 2 (voice)
Victor Ens Lead Animator
Ayden Soria Creepy Boy 1 (voice)
Evan Agos Ellingboe Boy (voice)
Alfonso G. Aguilar Original Music Composer
Charles Bonifacio Lead Animator
Matt Williames Lead Animator
Borja Montoro Animation
Joaquin Obradors Boy (voice)
Emma Yarovinsky Little Krum Girl (voice)
Edgar Martins Head of Story
Pablo García Revert Editor
Szymon Biernacki Production Design
Bailey Rae Fenderson Creepy Girl 2 (voice)
Hailey Hermida Krum Girl 1 (voice)
Carlos Martínez López Co-Director
Jorge A. Capote Animation
Olivier Clert Animation
Marcin Jakubowski Production Design
Tom Sales Animation
Leo Miller Ellinboe Boy 5 (voice)
Yoshimichi Tamura Animation
Tanguy Olivier Producer
Reiulf Aleksandersen Adult Saami (voice)
Torsten Schrank Character Designer
Daniel Fernandez-Casas Character Designer