 Jason SchwartzmanJesper (voice) | Jesper (voice) |
 J.K. SimmonsKlaus (voice) | Klaus (voice) |
 Rashida JonesAlva (voice) | Alva (voice) |
 Joan CusackMrs. Krum (voice) | Mrs. Krum (voice) |
 Norm MacdonaldMogens (voice) | Mogens (voice) |
 Will SassoMr. Ellingboe (voice) | Mr. Ellingboe (voice) |
 Sergio PablosPumpkin / Olaf (voice) | Pumpkin / Olaf (voice) |
 Mila BrenerEllingboe Girl 3 (voice) | Ellingboe Girl 3 (voice) |
 Neda Margrethe LabbaMargu (voice) | Margu (voice) |
 Sydney BrowerEllingboe Girl (voice) | Ellingboe Girl (voice) |
| TTeddy BlumSmall Ellingboe Boy (voice) | Small Ellingboe Boy (voice) |
 Julian ZaneKrum Boy (voice) | Krum Boy (voice) |
 Emma ShannonCreepy girl 1 (voice) | Creepy girl 1 (voice) |
 Kendall Joy HallAnnelise (voice) | Annelise (voice) |
 Sky AlexisEllingboe Girl 2 (voice) | Ellingboe Girl 2 (voice) |
 Tucker MeekEllingboe Boy / Krum Boy (voice) | Ellingboe Boy / Krum Boy (voice) |
 Amanda PhilipsonEllingboe Councilwoman (voice) | Ellingboe Councilwoman (voice) |
 Finn CarrEllingboe Boy 1 (voice) | Ellingboe Boy 1 (voice) |
 Lucian PerezKrum Boy / Creepy Boy 2 (voice) | Krum Boy / Creepy Boy 2 (voice) |
 Emma YarovinskyLittle Krum Girl (voice) | Little Krum Girl (voice) |
 Jaeden BettencourtKrum Boy / Jesper Son (voice) | Krum Boy / Jesper Son (voice) |
 Hailey HermidaKrum Girl 1 (voice) | Krum Girl 1 (voice) |
 Evan AgosEllingboe Boy (voice) | Ellingboe Boy (voice) |
| LLeo MillerEllinboe Boy 5 (voice) | Ellinboe Boy 5 (voice) |
| BBailey Rae FendersonCreepy Girl 2 (voice) | Creepy Girl 2 (voice) |
| AAyden SoriaCreepy Boy 1 (voice) | Creepy Boy 1 (voice) |
| RReiulf AleksandersenAdult Saami (voice) | Adult Saami (voice) |
 Matthew McCannAdditional Kids Voices (voice) | Additional Kids Voices (voice) |
 Hudson WestAdditional Kids Voices (voice) | Additional Kids Voices (voice) |
 Joaquin ObradorsBoy (voice) | Boy (voice) |
