Victor Jory

as Dr. Andre Morand/Paul Vernay

Loretta Young

as Margot Lesesne

Vivienne Osborne

as Rena Corday

David Manners

as Captain Jean Fabien

C. Henry Gordon

as Captain Radak

Herbert Mundin

as Bimpy

Émile Chautard

as Father Carmion

J. Carrol Naish

as Salazar