Jiří Sovák as Professor David Moore

Jana Brejchová as Gwen Williamsová

Lubomír Lipský as Professor Frank Pech

Iva Janžurová as Betsy

Petr Čepek as Albert Einstein

Radoslav Brzobohatý as Robert

Svatopluk Beneš as Giacometti

Jan Libíček as Smith

Viktor Maurer as Snyder

Miloš Kopecký as Wertheim

Stella Zázvorková as Wertheimová

Oldřich Musil as Rektor Rath

Josef Hlinomaz as Velitel policie

Karel Effa as

Josef Bláha as

Josef Kemr as

Vladimír Hlavatý as

Josef Beyvl as

Zdeněk Dítě as

Andrea Čunderlíková as

Vlastimil Hašek as

Ivo Gübel as

Otto Lackovič as

Václav Vydra as

Helena Růžičková as

Josefa Pechlátová as

Karel Pavlík as

Regina Rázlová as

Jaroslav Štercl as

Jiří Krampol as

Jarmila Gerlová as

Zdeněk Braunschläger as

Marta Richterová as

Jiří Hálek as

Vladimír Zátka as

Jindřich Narenta as

Jan Pohan as

Oldřich Velen as

Vladimír Hrubý as

Dana Hlaváčová as

Jiří Lír as

Luba Skořepová as

Oldřich Dědek as

Mirko Musil as

Stanislav Litera as

Josef Hajdučík as

Stella Májová as

Marcela Nohýnková as

Jitka Cerhová as

Jana Krampolová as

H. Bohatová as

Petra Černocká as

Lorna Vančurová as

Karel Engel as

Jaroslav Tomsa as

Karel Vítek as

Ladislav Dražan as

Jana Sedlmajerová as

Karel Hejsek as

Rudolf Jokl as

Jaroslav Kupšík as

Václav Štekl as

Hana Houbová as

Vlastimil Chejn as

Oldřich Lukeš as

Jan Maška as

Vladimír Navrátil as

Robert Morávek as

Pavel Navara as

Josef Mojžíš as

Jarmila Orlová as

Ivo Palec as

Eva Rubínová as

Svatopluk Skládal as

Václav Halama as

Miroslav Smrček as

Antonín Soukup as

Jan Víšek as

Otakar Rademacher as

Pavel Jareš as

Vilém Lipský as

František Šeba as

Adolf Široký as

M. Jelínek as

Alois Zouhar as

Josef Puffler as

Václav Čechák as

Vladimír Král as

D. Špačková as

Zuzana Talpová as

Antonín Jedlička as Computer (voice)

Alena Kreuzmannová as Frank Pech as Woman (voice)

Jiří Plachý as