Galina Korotkevich

Nadezhda

Vladimir Petrov

Mikhail

Yuri Bublikov

Yasha

Anatoliy Kuznetsov

Krylov Ivan Ivanovich

Vladimir Taskin

Academician Alexander Alexandrovich Petrov

Georgy Anchits

Suzdaltsev

Lev Shostak

Zdobnov

Lyudmila Ponomareva

Katya

Anatoli Abramov

hostel commandant

Alexandra Trishko

Aunt Masha