Natalya Kustinskaya as Alyona

Valentin Smirnitskiy as Vasiliy

Aleksandr Khanov as Aleksei Ivanovich

Aleksandr Gruzinsky as Gervasiy Fedoseyevich

Georgiy Kulikov as Nikolai Lvovich

Vyacheslav Zakharov as Seva

Aleksandr Potapov as Taras

Aleksandr Martyshkin as Pasha

Jonas Jurašas as Anton

Leonid Brusin as Vikentiy

Yuriy Tsurilo as Marko

Filimon Sergeyev as Kirill

Gennady Bolibok as Yukhan

Aleksandr Semerikov as Garik

Oleg Mokshantsev as Soluyanov

Leonid Chubarov as trainer

Dmitriy Masanov as Ivan

Irina Miroshnichenko as Violetta

Pavel Vinnik as Shatrov

Regina Temir-Bulat as Marina

Grigoriy Plotkin as Petya

Viktor Yakovlev as Alyona's relative

Klarina Frolova-Vorontsova as Alyona's grandmother

Georgi Svetlani as Alyona's grandfather

Vladimir Lippart as member of the academic Council

Nikolai Tolkachyov as member of the academic Council

Yan Sparre as commentator

Aleksandr Lenkov as Lyonya

Eugeny Agurov as head of the American delegation

Lidiya Menshova as wife of the Soviet ambassador

Ivan Bychkov as longshoreman

Thomas Holtzmann as himself (uncredited)

Marina Vlady as herself (uncredited)

Ervin Knausmyuller as rewarding person (uncredited)

Aleksey Bakhar as pilot (uncredited)

Vyacheslav Gostinsky as member of the American delegation (uncredited)

Valentina Ananina as Aleksei Ivanovich's companion (uncredited)

Pyotr Repnin as member of the academic Council (uncredited)

Semyon Bardin as member of the academic Council (uncredited)

Inna Kondratyeva as member of the academic Council (uncredited)

Olga Narovchatova as student-rower (uncredited)

Arkadi Tsinman as speaker at the academic Council in MAI

Leonid Yevtifyev as member of the academic council

Larisa Zhukovskaya as принцесса Христина

V. Lukyanov as