Николай Боголюбов
Ognev, chief of Sovier air defence
?
Sofya Sokolova
Galina, Ognev's sister
Борис Ливанов
Karl Runge, engineer
Николай Подгорный
Professor Runge
Лев Фенин
General Vahr
?
В. Лаврентьев
Colonel Massalskiy
Александр Антонов
Chief of aviation
Георгий Бобынин
Staff captain Blagonadyozhnyh
?
K. Chugunov
Master Akim Ivanovich