Jeffrey Clavering is hired in London by The Great Eastern Oil Corporation to go to Paris to prevent unscrupulous industrialist Nikolai Kamarov from gaining control of their oil fields and turning them over to a foreign power.
| Actor | Role |
|---|---|
 Alan MarshalJeffrey Clavering | Jeffrey Clavering |
 Tala BirellSandra Kamarov | Sandra Kamarov |
 Mady CorrellPrincess Stephanie | Princess Stephanie |
 C. Henry GordonNikolai Kamarov | Nikolai Kamarov |
 Herbert MundinSergeant Alfred M. Higgs | Sergeant Alfred M. Higgs |
 Gerald Oliver SmithBassett | Bassett |
 Ivan F. SimpsonMichael (as Ivan Simpson) | Michael (as Ivan Simpson) |
| EElsa BuchananSophia | Sophia |
 Dwight FryeAlex | Alex |
 Leonard WilleySir Herbert Donbridge | Sir Herbert Donbridge |
| IIan MaclarenSir Joshua Longstreet | Sir Joshua Longstreet |
 Egon BrecherKirman | Kirman |
 Frank PugliaSignor Bramucci | Signor Bramucci |
 Sidney BraceyKamarov's Butler | Kamarov's Butler |
 Lawrence GrantForeign Diplomat | Foreign Diplomat |
| KKeith HitchcockSecondary Supporting Role | Secondary Supporting Role |
 Paul SuttonChauffeur | Chauffeur |
 Wilhelm von BrinckenForeign Diplomat | Foreign Diplomat |