Plot: A mysterious person has returned to disturb the school's peace. Does the school hold a big secret or is the truth more interesting than the myth?
Cast
Tuomas ToivanenAntti Pakkari (voice)Tuomas Toivanen was 23 in Hullu Hullumpi Yläaste - Season 5 - Salaisuuksien kansio (Episode 7).
Birthday: Sat, Apr 11 1998
Malla YlijurvaElli (voice)Malla Ylijurva was >> in Hullu Hullumpi Yläaste - Season 5 - Salaisuuksien kansio (Episode 7).
Birthday: Unknown Birthday
Ville-Veikko MikkonenKalle Kankaanpää (voice) / Tumppu (voice)Ville-Veikko Mikkonen was >> in Hullu Hullumpi Yläaste - Season 5 - Salaisuuksien kansio (Episode 7).
Birthday: Unknown Birthday
Eelis SaurioKeijo (voice)Eelis Saurio was >> in Hullu Hullumpi Yläaste - Season 5 - Salaisuuksien kansio (Episode 7).
Birthday: Unknown Birthday