This is the 11th of "Schulmädchen" movies and core issues this time is protection of young people and helping them in dangerous or critical situations.

Helga Andersas Susi (voice) (uncredited)
Sandra Atiaas Susi (uncredited)
Ulrich Beigeras Kriminalkommissar Jenkel (uncredited)
Alexandra Bogojevicas Gabi (uncredited)
Astrid Boneras Dr. Hammacher (uncredited)