"A rich but naive young woman is in possession of some priceless jewels. She herself doesn't know it, but a gang of jewel thieves does."
Charles Korvin
as Arsene Lupin
Ella Raines
as Stacie Kanares
J. Carrol Naish
as Ganimard
George Dolenz
as Dubose
Gale Sondergaard
as Bessie Seagrave
Miles Mander
as Charles Seagrave
Leyland Hodgson
as Constable Ryder
Tom Pilkington
as Pollett
Lillian Bronson
as Wheeler
Holmes Herbert
as Jobson
Charles La Torre
as Inspector Cogswell
Gerald Hamer
as Doc Marling
Ted Cooper
as Cartwright
Art Foster
as Superintendent
Clyde Kenney
as Beckwith
Alphonse Martell
as Conductor
John Burton
as Radio Commentator (uncredited)
Jimmy Aubrey
as Marqet (uncredited)
David Clyde
as Bobby (uncredited)
Heinie Conklin
as Airport Employee (uncredited)
Robert Cory
as Ticket Taker (uncredited)
Cyril Delevanti
as Wine Expert (uncredited)
Saul A. Goodkind
Editor
Milton Rosen
Music
John B. Goodman
Art Direction
Russell A. Gausman
Set Decoration
Bernard B. Brown
Sound Director
Vera West
Costume Design
Abraham Grossman
Bertram Millhauser
Screenplay
Music Director
Edward R. Robinson
Glenn E. Anderson
Sound
Ford Beebe
Director
Hal Mohr
Director of Photography
Maurice Leblanc
Characters
Producer