The story centers on Jonny, who is stranded in the fictional South American republic of Nebrador after being discovered as a stowaway en route to inherit a ranch elsewhere; due to his striking resemblance to Governor Oronta, he is coerced into impersonating the leader to shield him from assassination attempts amid a brewing revolution.
| Actor | Role |
|---|---|
 Hans AlbersJonny / General Oronta | Jonny / General Oronta |
 Margot HielscherMarina | Marina |
 Peter PasettiOberleutnant Dacano | Oberleutnant Dacano |
 Ferdinand AntonLeutnant Articos | Leutnant Articos |
 Trude HesterbergMadame Dubouche | Madame Dubouche |
 Al HoosmannTotti | Totti |
 Franz MuxenederPaco | Paco |
 Rudolf VogelMajor Souza | Major Souza |
 Fritz BenscherRubino | Rubino |
| KKurt E. LudwigCarlo | Carlo |
| LLinda HardtRosita | Rosita |
 Oliver HassencampNot listed | Not listed |
| HHorst LoskaOberst Maracas | Oberst Maracas |
| HHans BergmannOberst Rastano | Oberst Rastano |
| CCarl Heinz PetersMajor Vinaigle | Major Vinaigle |
| WWolfgang MolanderKapitän Tolly | Kapitän Tolly |
| EErnst RotmundPräsident Dacapo | Präsident Dacapo |