Jan Kanyza

Karel Vojta

Boris Shcherbakov

Arkadiy Voyvodin

Anatoliy Solonitsyn

Lev Nikolayevich Slivin

Evgeniy Leonov-Gladyshev

Misha

Vladimír Ráž

Josef Vendler

Vítězslav Jandák

Sláveček Žlabíček

Jan Pohan

Šembera

Jiří Lír

Engineer

Hana Čížková

Blonde

Nina Ruslanova

Coordinator

Bohumil Švarc

Chief Engineer

Jorga Kotrbová

Dr. Margarita Aleksandrovna (voice)

Vilém Besser

Viktor (voice)

Simona Stašová

Coordinator (voice)