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)
