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

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)

Sergio Pablos

Director

Carlos Martínez López

Co-Director

Zach Lewis

Screenplay

Jim Mahoney

Screenplay

Sergio Pablos

Original Story

Sergio Pablos

Screenplay

Edgar Martins

Head of Story

Eamonn Butler

Executive Producer

Gustavo Ferrada

Producer

Warren Franklin

Executive Producer

Mercedes Gamero

Producer

Mikel Lejarza

Producer