Two spies (Marcel and Remmy), employed by foreign trusts, come to Romania to sabotage Professor Turtureanu's invention.
| Actor | Role |
|---|---|
 Mihai PălădescuDima | Dima |
 Silviu StănculescuMarcel | Marcel |
 Virgil OgășanuRemmy | Remmy |
 Gilda MarinescuCornelia | Cornelia |
 Geo BartonTurtureanu | Turtureanu |
 Emil HossuMihai | Mihai |
| EEniko ÖssToto | Toto |
| MMihai NiculescuMarius | Marius |
| IIoana Ionita-IonescuFemeia misterioasa | Femeia misterioasa |
 Horea PopescuMarian | Marian |