On screen
Cast
12 credited performers
Oleg Zhakov
Dr. Aleksei Rozhdestvensky
Mikhail Kuznetsov
Dr. Aleksandr Kolesov
Nikolai Cherkasov
Lukich
Viktor Khokhryakov
Dr. Vladimir Petrov
Lyudmila Shabalina
Vera
Artwork unavailable
Klavdiya Lepanova
Lena
Boris Kudryavtsev
Character not listed
Vladimir Dorofeyev
Character not listed
Mikhail Rostovtsev
Scientist at the banquet
Aleksandr Ardi
"Arbenin"
Vladimir Taskin
Journalist
Lev Krovitskiy
Scientist