character - Doctor

character - Ganin

character - Igor Musatov

character - Dyakonov

character - Павел Иванов капитан

character - Mykhaylo Zhmenyak

character - Михайло Жменяк, син Івана

character - подполковник Ильин

character - Владимир Антонович Васюшкин (физрук)

character - Kostya Novotorzhanin

character - employee of the Moscow Institute

character - Виктор, зять Бузыкина