Jan Kanyza

Karel Vojta

Valentina Shendrikova

Dr. Margarita Aleksandrovna

Boris Shcherbakov

Arkadiy Voyvodin

Anatoliy Solonitsyn

Lev Nikolayevich Slivin

Viktor Gogolev

Aleksandr Aleksandrovich Borisov

Evgeniy Leonov-Gladyshev

Misha

Vladimír Ráž

Josef Vendler

Vítězslav Jandák

Sláveček Žlabíček

Jan Pohan

Šembera

Viktor Ilichyov

Viktor

Jiří Lír

Engineer

Hana Čížková

Blonde

Jitka Zelenohorská

Shop Assistant

Jarmila Smejkalová

Karel's Mother

Nina Ruslanova

Coordinator

Bohumil Švarc

Chief Engineer

František Vicena

Lev Nikolayevich Slivin (voice)

Otakar Brousek

Aleksandr Aleksandrovich Borisov (voice)

Vilém Besser

Viktor (voice)

Simona Stašová

Coordinator (voice)

Miroslav Zounar

Inspector (voice)