A children's adventure spy film from a time when the radio telephone was science fiction.
| Actor | Role |
|---|---|
| VVáclav VenhodaRobinson | Robinson |
| FFrantišek MaxiánPetr | Petr |
| MMilan LivoraJirka | Jirka |
| MMartin VačkářBryknar | Bryknar |
 Karel SmyczekJupka | Jupka |
| JJosef KrumlAdjutant | Adjutant |
 Zuzana OndrouchováJana | Jana |
| MMarcela JandováZuzka | Zuzka |
 Vladimír HrubýSodoma | Sodoma |
 Jana ŠtěpánkováVera | Vera |
 František FilipovskýDr. Svarc | Dr. Svarc |
 Miloš KopeckýKrásný Venca | Krásný Venca |
 Josef KemrLojza | Lojza |
 Rudolf HrušínskýPipka | Pipka |
 Martin RůžekMan in Grey | Man in Grey |
 Lubomír KostelkaNot listed | Not listed |
 Josef HlinomazCold Stores Worker | Cold Stores Worker |
| LLubomír BrygNot listed | Not listed |
 Jiří SovákDriver | Driver |
 Jan PřeučilOperator Policeman | Operator Policeman |
 Jaroslav SatoranskýNot listed | Not listed |
| FFrantišek MiškaNot listed | Not listed |
| VVladimír LabskýNot listed | Not listed |
| GGabriela Bártlová-BuddeusováNot listed | Not listed |
 Fanda MrázekNot listed | Not listed |
 Jaroslav ŠterclNot listed | Not listed |
 František VnoučekNot listed | Not listed |
| MMiloš StejskalNot listed | Not listed |