Club Zero

Mia Wasikowska

Miss Novak

Sidse Babett Knudsen

Miss Dorset

Amir El-Masry

Mr. Dahl

Elsa Zylberstein

Elsa's Mother

Mathieu Demy

Elsa's Father

Ksenia Devriendt

Elsa

?

Luke Barker

Fred

Florence Baker

Ragna

?

Samuel D Anderson

Ben

?

Gwen Currant

Helen

Amanda Lawrence

Miss Benedict

Sam Hoare

Fred's Father

Camilla Rutherford

Fred's Mother

Keeley Forsyth

Ragna's Mother

Lukas Turtur

Ragna's Father