The television adventure film, based on Verne's novel of the same name, Twenty Thousand Leagues Under the Sea, tells the adventures of three shipwrecked prisoners aboard the legendary submarine Nautilus.
| Actor | Role |
|---|---|
 Jiří Adamírakapitán Nemo | kapitán Nemo |
 Jiří Pleskotprofesor Aronnax | profesor Aronnax |
 Jiří SchmitzerNed Land | Ned Land |
 Vítězslav JandákConseil | Conseil |
| ZZdeněk Rumpíkprvní důstojník | první důstojník |
| JJiří Ptáčníkkormidelník | kormidelník |
| JJan J. Vágnersteward | steward |
| TTomáš HendrychNot listed | Not listed |
| RRudolf PapežíkNot listed | Not listed |
| RRichard SlaninaNot listed | Not listed |
| JJan VítNot listed | Not listed |