Klaus

Jason Schwartzman

Jesper (voice)

J.K. Simmons

Klaus (voice)

Rashida Jones

Alva (voice)

Joan Cusack

Mrs. Krum (voice)

Norm Macdonald

Mogens (voice)

Will Sasso

Mr. Ellingboe (voice)

Sergio Pablos

Pumpkin / Olaf (voice)

Mila Brener

Ellingboe Girl 3 (voice)

Neda Margrethe Labba

Margu (voice)

Sydney Brower

Ellingboe Girl (voice)

Teddy Blum

Small Ellingboe Boy (voice)

Julian Zane Chowdhury

Krum Boy (voice)

Emma Shannon

Creepy girl 1 (voice)

Kendall Joy Hall

Annelise (voice)

Sky Alexis

Ellingboe Girl 2 (voice)

Tucker Meek

Ellingboe Boy / Krum Boy (voice)

Amanda Philipson

Ellingboe Councilwoman (voice)

Finn Carr

Ellingboe Boy 1 (voice)

Lucian Perez

Krum Boy / Creepy Boy 2 (voice)

Emma Yarovinsky

Little Krum Girl (voice)

Jaeden Bettencourt

Krum Boy / Jesper Son (voice)

Hailey Hermida

Krum Girl 1 (voice)

Evan Agos

Ellingboe Boy (voice)

Leo Miller

Ellinboe Boy 5 (voice)

Bailey Rae Fenderson

Creepy Girl 2 (voice)

Ayden Soria

Creepy Boy 1 (voice)

Reiulf Aleksandersen

Adult Saami (voice)

Matthew McCann

Additional Kids Voices (voice)

Hudson West

Additional Kids Voices (voice)

Joaquin Obradors

Boy (voice)

Alfonso G. Aguilar

Original Music Composer

Sergio Pablos

Original Story

Sergio Pablos

Screenplay

Zach Lewis

Screenplay

Edgar Martins

Head of Story

Jim Mahoney

Screenplay

Daniel Fernandez-Casas

Character Designer

Sergio Pablos

Director

Szymon Biernacki

Production Design

Eamonn Butler

Executive Producer

Victor Ens

Lead Animator

Mercedes Gamero

Producer

Matthew Jon Beck

Casting

Borja Montoro

Animation

Mikel Lejarza

Producer

Alex Orrelle

Animation

Matt Williames

Lead Animator

Marisa Román

Producer

Maxime Delalande

Animation

Jinko Gotoh

Executive Producer

Torsten Schrank

Character Designer

Warren Franklin

Executive Producer

Micah Dahlberg

Producer

Sergio Pablos

Producer

Olivier Clert

Animation

Tanguy Olivier

Producer

Gustavo Ferrada

Producer

Carlos Sotolongo

Dialogue Editor

Jorge A. Capote

Animation

Tom Sales

Animation

Yoshimichi Tamura

Animation

Charlie Bonifacio

Lead Animator

Carlos Martínez López

Co-Director

Pablo García Revert

Editor

Marcin Jakubowski

Production Design

Micah Dahlberg

Casting

Alan Tyler

Additional Music