Merle Oberon
— Ruby
George Brent
— Nigel Armine
Charles Korvin
— Mahoud Baroudi
Paul Lukas
— Sir Meyer Isaacson
Lenore Ulric
— Marie
Arnold Moss
— Ahmed Effendi
Robert Capa
— Hamza
Aubrey Mather
— Dr. Harding
Ludwig Stössel
— Dr. Mueller
André Charlot
— Prof. Dupont
Suzanne Cloutier
— Yvonne Dupont
Gloria Lloyd Roberts
— Jean McCormick (as Gloria Lloyd)