Lidiya Mel'nikova as Серафима Андреевна Крупицына - Сима

Igor Vladimirov as Александр Дмитриевич Расщепей

Aleksandr Voevodin as Роман Сергеевич Каштанов - Ромка

Boris Zajdenberg as Всеволод Михайлович

Vsevolod Platov as Причалин

Eduard Izotov as

Tamara Chernova as

Stefaniya Stanyuta as

Vladimir Erenberg as

Valentina Ananina as

Aleksei Mironov as

Aleksandr Movchan as

Yuriy Stoyanov as

Olga Alexeeva as одноклассница Симы