Richard Greene
Count Alexei Orloff
Valentina Cortese
Elizabeth, Princess Tarakanova
Binnie Barnes
Catherine - Empress of Russia
Greta Gynt
Countess Loradona Camponiello
Charles Goldner
General Korsakov
Walter Rilla
Prince Radziwill
Hugh French
Captain Sergei Nikolsky
Dennis Vance
Vasska, Orloff's Aide
William Tubbs
Boris
Dino Galvani
Russian Ambassador
Ewan Roberts
Ship's Doctor