Boris Livanov
Pyotr Vinogradov, inventor
Valentin Tsishevskiy
Senya Kaufman
Konstantin Gradopolov
Kotya Okhotnikov
Galina Pashkova
Valya, music student
Nadezhda Ardi
Tonya, architecture student
Ivan Pereverzev
Physical education instructor (uncredited)
Tatyana Barysheva
Senya's mother (uncredited)
Vsevolod Sanayev
Red army sailor (uncredited)
Galina Stepanova
Young girl (uncredited)
Sergei Antimonov
Professor (uncredited)
Yeva Milyutina
Spectator at the concert (uncredited)
Maria Klyuchareva
Middle aged woman (uncredited)
