Людмила Целиковская

Sima, his daughter

Павел Кадочников

Alexey Mukhin, composer

Николай Коновалов

Anton Ivanovich Voronov, professor

Tatyana Kondrakova

Dina, Voronov's eldest daughter

Тамара Глебова

Natalia Mikhailovna, Voronov's wife

Tamara Pavlotskaya

Yadviga Valentinovna Kholodetskaya

Александр Орлов

Yakov Grigorievich Kibrik, comedian of the Musical Comedy

Сергей Мартинсон

Kerosinov, composer

Vitaly Kilchevsky

Rollandow, tenor

Анатолий Королькевич

Skvoreshnikov, director of musical comedy

Владимир Гардин

Johann Sebastian Bach

Анатолий Нелидов

conservatory vocal professor

Екатерина Соболь

соседка Холодецкой

Лев Кровицкий

Samuil, conductor (uncredited)