Leonid Bronevoy as Yuri Leonidovich, headmaster / humanoid

Svetlana Kryuchkova as Alla Konstantinovna, teacher of mathematics

Ilya Rutberg as teacher's husband / humanoid

Boryslav Brondukov as Uncle Kolya

Grigori Yevseyev as Vasya Lopotukhin

Vitaliy Leonov as Stepan Ivanovich

Ivan Ufimtsev as Иван Степанович

Vasya Arkanov as Shafirov

Natasha Zbrueva as Malakhov

Anton Narkevich as Pavlov

Maxim Kondratiev as Petrov

Maxim Shirokov as Poluektov