Christian Mikkelsen

Jens / Alf-Tore / Hjernekjell (voice)

Nasrin Khusrawi

Lisa (voice)

Aksel Hennie

Simen Sprut (voice)

Mathilde Storm

Cumilla (voice)

Christian Rubeck

Jizzmo (voice)

Bjørn Sundquist

Prof. Saltsmak (voice)

John Brungot

Egon Olsæd (voice)

Gustav Nilsen

Benner'n / Bjell (voice)

Silya Nymoen

Gynekologen (voice)

Jakob Schøyen Andersen

Hjernekjell (voice)

Amir Asgharnejad

Bollsæd (voice)

Ingrid Bolsø Berdal

Hjerniffer (voice)

Charlotte Frogner

Hjernia / Mor (voice)

Henrik Horge

Far (voice)

Stig Frode Henriksen

E-Coli Troll (voice)

Jeppe Beck Laursen

Bobby / Sykepleier (voice)

Lisa Tønne

Herr Sædberg (voice)

Ida Nilsen

Ruth-Elizabeth (voice)

Kamilla Alnes

Maja (voice)