Tatyana Rodionova
Andrey Rodionov
Arthur Clark (as Paul Butkevich)
Murti (as Viktor Vinicescu-Sotski)
Vladimir Gusarov
Vladimir Fedotov
Masha Fedotova
Soviet Delegation Member
Sergey Aleksandrovich
American Crew Member
(as Bob Tsymba)
Sergey Aleksandrovich's Wife
Sergey Aleksandrovich (voice)
Son of the Rodionovs
Cameraman
Old Hunter
Poddar (as M. Voinicescu-Sotski)
Vasili Petrovich
Indian Woman (uncredited)