Sophia Münster as Hanni Sullivan

Jana Münster as Nanni Sullivan

Suzanne von Borsody as Frau Mägerlein

Katharina Thalbach as Mademoiselle Bertoux

Hannelore Elsner as Direktorin Frau Theobald

Barbara Schöneberger as Daphne Diehl

Justus von Dohnányi as Mister Gordon

Konstantin Wecker as Professor Konrad Kästner

Nele Guderian as Daniela

Luisa Spaniel as Lilly

Aleen Jana Kötter as Erika

Leopold Klieeisen as Clyde

Liam van Enschot as Seth

Carlos Knöpfel as Wuschel

Michelle Heik as Jette

Isabella Pasimeni as Isabella

Johann Florin as Joe

Langston Uibel as Internatsschüler (uncredited)