Mary Ellis

Melitza Hjos

Otto Kruger

King Stefan

Victor Jory

Baron Lyadeff

Barry MacKay

Anthony Allan

Trefor Jones

Lorenti

Maire O'Neill

Phoebe

Anthony Holles

Maestro

Charles Carson

Otto

Felix Aylmer

Diplomat

Finlay Currie

Angus MacKintosh

Jeanne Carpenter

Undetermined Role (uncredited)

Raymond Lovell

Ship's Officer (uncredited)

Brian Desmond Hurst