Directed by
| Vasili Levin | ||
Writing Credits (in alphabetical order)
| Alexey Leonov | ||
| Valentin Selivanov | ||
Cast (in credits order) complete, awaiting verification
| Leonid Bakshtaev | ... | Pavel Belov - Commander | |
 |
Gennadi Shkuratov | ... | August Goris - Navigator |
| Vitali Doroshenko | ... | Alexander Sagansky - Cybernetic | |
| Anatoliy Mateshko | ... | Mitya Tamarkin - Flight engineer | |
| Lyudmila Smorodina | ... | Maria Dementieva - Doctor | |
| Anatoliy Azo | ... | Nikolay Krechet - Project manager | |
| Andrey Gradov | ... | Andrey Semyonovich | |
| Givi Tokhadze | ... | Old Man - Alien | |
|
|
Lia Eliava | ... | Woman - Anna Petrovna / Alien |
| Elena Tonunts | ... | Eya - Alien (as Elena Kokalevskaya) | |
| Yuriy Menshagin | ... | Italian Astronaut | |
| Boris Rudnev | ... | Italian Astronaut | |
| Vitaly Sevastyanov | ... | Self - Introduction Speaker (as Vitali Sevastyanov) | |
| Alexey Leonov | ... | Introduction Speaker | |
| Nikolai Brilling | ... | Committee Member (uncredited) | |
|
|
Ermengeld Konovalov | ... | Committee Member (uncredited) |
| Valentin Kulik | ... | Committee Member (uncredited) | |
| Rest of cast listed alphabetically: | |||
|
|
Boris Bystrov | ... | Voice of Commander Belov (uncredited) |
| Aleksey Safonov | ... | Voice of Nikolay Krechet (uncredited) | |
Music by
| Aleksandr Zatsepin | ||
Cinematography by
| Vadim Avloshenko | ||
| Eduard Gubskij | ||
| Yuri Lemeshev | ||
Editing by
| Viktoriya Monyatovskaya | ||
Production Design by
| Aleksandr Tokarev | ||
| Larisa Tokareva | ||
Costume Design by
| Natalya Akimova | ... | (as N. Akimova) |
Makeup Department
| Svetlana Kucheryavenko | ... | makeup artist |
Sound Department
| Anna Podlesnaya | ... | sound |
Editorial Department
| Nelli Nekrasova | ... | editor (as N. Nekrasova) |
Additional Crew
| Nikolai Kardashev | ... | Consultant: USSR Academy of Sciences |
| Alexey Leonov | ... | Consultant: USSR Cosmonaut (as Alexei Leonov) |
| Roald Sagdeev | ... | chief consultant |
| Vitaly Sevastyanov | ... | Consultant: USSR Cosmonaut (as Vitali Sevastyanov) |
| I. Shklovskiy | ... | Consultant: USSR Academy of Sciences |
