Vladislav Galkin as Alyosha Sidorov

Tanya Martynova as Irochka Stulova

Valeriya Likhodey as Valentina - pionervozhataya

Sergei Artsybashev as Vasiliy Trofimovich - nachal'nik pionerlagerya

Mariya Barabanova as kontroler v zooparke

Valentin Bukin as Il'ya Muromets

Vladimir Dyatlov as Dobrynya Nikitich

Veleriy Zakharyev as Alesha Popovich

Nina Krasilnikova as ekskursovod v zooparke

Viktor Fokin as papa Sidorova

Marina Shimanskaya as mama Sidorova

Vyacheslav Novik as Dima Somov - pionervozhatyy

Aleksandr Bespalyy as rabotnik zooparka