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.

Alan Marshal
Jeffrey Clavering

Tala Birell
Sandra Kamarov

Mady Correll
Princess Stephanie

C. Henry Gordon
Nikolai Kamarov

Herbert Mundin
Sergeant Alfred M. Higgs

Gerald Oliver Smith
Bassett

Ivan F. Simpson
Michael (as Ivan Simpson)
Elsa Buchanan
Sophia

Dwight Frye
Alex

Leonard Willey
Sir Herbert Donbridge
Ian Maclaren
Sir Joshua Longstreet

Egon Brecher
Kirman