Yevgeni Boronikhin
— Napoleon Ginimer, engineer-chemist
Yelena Chaika
— Natalia Ivanovna, instructor
Roman Rubinstain
— Jim Dugan, king of anilin
Iona Talanov
— Minister of war
Пётр Кузнецов
— Archbishop
Ольга Спирова
— Irma Grant, aviator
Nadezhda Fridlyand
— Letrice Grant
Sergey Galich
— Herbert Bell, worker
V. Lande
— Ellie Forstet, worker
Пётр Подвальный
— Chief engineer
Petr Shidlovsky
— Commissar of defence of Leningrad
Яков Гудкин
— Foreign businessman
Ирина Володько
Константин Гибшман
Aleksey Goryushin
— Armoured car driver (uncredited)
Vasiliy Chudakov
— (uncredited)