The bank officer Bedrich Hroch is sent by the bank director to the zoo, which asked an allocation of one and half kg of gold for a gold tooth for a hippo. During the check up of the hippo's teeth Bedrich is swallowed by the hippo. The man does not die in the hippo's guts and he chats quite happily with his frightened wife Dása. Journalist Pip Karen, his friend is also present to the dialogue and he has immediately an idea how to use this special situation. He tells to the new minister Borovec and his opponent professor Fibinger that there is a hippo in the zoo which can speak. He also tells them how to use this situation for a political propaganda.
Oldo Hlaváček
Helga Čočková
Svatopluk Matyáš
Helena Blehárová
Miroslav Homola
Zdena Hadrbolcová
Eduard Dubský
Jiří Lír
Slávka Budínová
Josef Větrovec
Jiří Holý
Oldřich Velen
Jan Skopeček
Josef Kobr
Miloš Willig
Tomáš Sedláček
Josef Hlinomaz
Karel Hábl
Ivana Bílková
Jan Pohan
Jiří Jelínek
Bert Schneider
Vladimír Hrubý
Karel Hovorka
Jaroslav Cmíral
Josef Bádal
Milan Mach
Miloš Vavruška
Jana Sedlmajerová
Eduard Pavlíček
Viktor Maurer
Vladimír Bičík
Jiřina Zemanová
Martin Vrabec
Jiří Šulc
Miloslav Svoboda
Oldřich Hoblík
Miroslav Laňka
Petr Kučera
Jiří Ondroušek
Dagmar Štursová
Vratislava Jelínková
Václav Luks
Renata Bauerová
Vlastimila Vlková
Jiří Kasík
Milan Kindl
Otakar Rademacher
Zdeněk Srstka
Jaroslav Tomsa
Olga Fleischerová
Tomáš Hanták
Anna Hantáková
Marie Libigerová
Lubomír Mohyla
Běla Sobotková
Václav Štádler
Jiří Vrzal
Václav Zahradník
Karel Bejlek
Vladimír Brož
Miloslav Bureš
Vít Clar
Petr Fleischer
Emanuel Hrdina
Vladimír Hruška
Viktor Hynčica
Zdeněk John
Otto Kotýnek
Mirko Krebs
Václav Matouš
Luboš Nývlt
Jiří Pelikán
Jan Pospíšil
Petr Smolík
Petr Šprunk
Jaroslav Tichý
Vlastimil Voňavka
Miloš Vychytil
Blažena Holišová
Věra Kalendová
Mirko Musil
Antonín Jedlička