Dangerous spies act as representatives of an international recording company to get important plans from the father of an aspiring composer.
| Actor | Role |
|---|---|
 Sándor PécsiGáspár Tokaji | Gáspár Tokaji |
 Antal PágerTanár úr | Tanár úr |
 Gyula BodrogiAttila Tokaji | Attila Tokaji |
 Sarolta ZalatnayKati Szilágyi | Kati Szilágyi |
 György BárdyKurt | Kurt |
 Rudolf SomogyváriHerbert | Herbert |
 Szilvia SunyovszkyÉva | Éva |
 Péter HusztiKovács | Kovács |
| SSándor NémethNot listed | Not listed |
 Marika NémethJudit Szentirmay | Judit Szentirmay |
 János KoósPianist | Pianist |
 Róbert RátonyiSodomai | Sodomai |
 Lenke LoránGizike | Gizike |
 Ferenc ZentheGáspár | Gáspár |
 Péter BenkőGuitarist | Guitarist |
 László InkeDirector | Director |
 János KörmendiNot listed | Not listed |
 Sándor PethesNot listed | Not listed |
 Péter BalázsNot listed | Not listed |
 András KernNot listed | Not listed |
 Márta BakóNot listed | Not listed |
| KKati SírBlondie | Blondie |
 Itala BékésNot listed | Not listed |
| PPéter MarikNot listed | Not listed |
 Nándor TomanekNot listed | Not listed |
| JJános ZáchNot listed | Not listed |
| FFerenc ZentaiOlaf Orgeborg | Olaf Orgeborg |
| JJolán BorosNot listed | Not listed |
 Árpád GyengeNot listed | Not listed |