| Episode cast overview, first billed only: |
 | Josef Bláha | - | Richard / Jan Richard (formerly Filip) |
 | Josef Dvorák | - | Leo Kane / Emil Karas |
 | Dagmar Patrasová | - | Emilia Fernandez / Káta Jandová |
 | Jirí Novotný | - | Dr. Jacques Michell / Michal Noll (as Jirí D. Novotný) |
 | Vladimír Mensík | - | Policeman Vyskocil |
 | Viktor Král | - | Adam Bernau |
 | Dagmar Havlová | - | Alice Bernauová (as Dagmar Veskrnová) |
 | Eugen Jegorov | - | Karel Bernau |
 | Jirí Krampol | - | Mr. Karlík, car repairer |
 | Jirí Lábus | - | Policeman |
 | Jirí Kodet | - | Eda Nehasil |
 | Borivoj Navrátil | - | Chairman of the Board of Earth |
 | Jirí Císler | - | Hotel Director Milos |
 | Otto Simánek | - | Director of School (as O. Simánek) |
 | Jitka Molavcová | - | Chambermaid Heli |
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