Sanya Grigoryev
Katya Tatarinova
Valya Zhukov
Romashov
Sanya in childhood
Katya in childhood
Romashka in childhood
Valya in childhood
Mariya Vasilyevna
Nikolai Antonovich
Korablyov
Nina Kapitonovna
aunt Dasha
Sasha
Navigator
professor
Katya's friend
colonel
pilot (uncredited)
Zhukov's assistant (uncredited)
