Merle Oberon
Jane Benson
Rex Harrison
Dr. Freddie Jarvis
Ursula Jeans
Millie
Robert Douglas
John Flight
Louis Borel
Pietro
Zena Dare
Julie
Peter Haddon
Lord Petcliffe
David Tree
Journalist
Mackenzie Ward
Guy
Elisabeth Welch
Cabaret Singer
Carl Jaffe
Michel
Herbert Lomas
Ladbrooke
Wilfred Shine
Frude
Gerald Nodin
Cartwright
Bruce Winston
Director of Clinic
Evelyn Ankers
Sanitarium Patient (uncredited)
Frank Atkinson
Reporter (uncredited)
Allan Brett
Reporter (uncredited)
Meriel Forbes
Miss Fortescue (uncredited)
Lewis Gilbert
Minor Role (uncredited)
Ethel Griffies
Miss Bates - the Governess (uncredited)
Wilfrid Hyde-White
Dwight - Sanitarium Spokesman (uncredited)
Bill Shine
Minor Role (uncredited)