Yaroslav Zhalnin as Yuri Gagarin

Mikhail Filippov as Sergey Korolev

Vladimir Steklov as Nikolai Kamanin

Olga Ivanova as Valentina Ivanova

Sergei Laktuynkin as Valeriy Bykovsky

Inga Strelkova-Oboldina as Ada Kotovskaya

Sergey Kalashnikov as Pavel Popovich

Danila Bukrin as Boriska

Vladimir Chuprikov as Nikita Khrushchev

Viktor Proskurin as Father

Nadezhda Markina as Gagarin's mother, Anna Timofeevna Gagarina

Vadim Michman as Herman Titov

Sergey Tezov as Colonel Karpov

Anatoliy Otradnov as Adrian Nikolaev

Evgeniy Tkachuk as Lieutenant

Dmitry Tikhonov as Konstantin Feoktistov

Olga Yakovtseva as Tanya

John Bakhanbaev as cosmonaut

Valeriy Afanasyev as boatman

Maksim Saprykin as Yuri Gagarin in his childhood

Khristopher Yakovtsev as Yuri Gagarin in his childhood

Lev Yakovtsev as Yuri Gagarin in his childhood

Aleksandr Pal as эпизод

Darya Melnikova as Зоя, сестра Юрия Гагарина

Daniil Vorobyov as Grigoriy Nelyubov

Anatoliy Gushchin as Aleksey Leonov

Sergey Kagakov as OLeg Ivanovskiy

Olga Kuzmina as Marina Popovich

Marina Pravkina as Tamara Titova

Ivan Dobronravov as Boris Volynov

Anatoly Kalmykov as orchestra manager

Ilya Rutberg as professor

Anastasia Privalova as reporter

Dmitry Kalistratov as Evgeniy Krunov

Elmar Ablaev as KGB officer

Andrei Demchenko as

Roman Senkov as

Mikhail Gorskiy as Viktor Gorbatko

Anton Toropov as

Dmitriy Maltsev as

Oliviya Yakovtseva as