A trespassing gang of boys encounter a ghost in the ruins of a castle. When they rescue the ghost who is caught in a trapset, they become allies in a fight to prevent ruins from being turned into mushroom farm by the city authorities.
Jiří Sovák
as rytíř Brtník z Brtníku
Vlastimil Brodský
as Vávra (ředitel školy)
Dana Vávrová
as Leontýnka
Jiří Procházka
as Janek Dlouhý
Lubomír Lipský
as Antonín Jouza
Věra Tichánková
as Pilátová alias Černá kronika
Jiří Bruder
as předseda DrPrHrBr
Petr Starý
as Pepa Boháček
Igor Nachtigal
as zrzek
David Vlček
as Eda Adámek
Tomáš Holý
as Vendelín Nademlejnský
Jiří Brož
as Maličký
