Nikolai Cherkasov

scientist Fyodor Dronov

Sofiya Pilyavskaya

Natalya Dmitrievna, Dronov's wife

Andrei Popov

father Serafim

Elina Bystritskaya

Ksenia Rumyantseva

Igor Ozerov

Alexei Vyazmin

Igor Gorbachyov

Victor Morozov

Galina Anisimova

Asya Davidovna

Yakov Malyutin

Mikhail Morgunov

Vera Kuznetsova

Anna Pavlovna, Vyazmin's mother

Efim Kopelyan

Filimonov

Boris Ryzhukhin

Sizov

Pavel Pankov

Troshkin

Vladimir Maksimov

Georgi Natanson

Director

Vladlen Chistyakov

Music

Tamara Samoznayeva

Producer

Samuil Alyoshin

Writer

Sergei Ivanov

Director of Photography