"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)
Edward R. Robinson
Set Decoration
Bertram Millhauser
Screenplay
Milton Rosen
Music Director
Glenn E. Anderson
Sound
John B. Goodman
Art Direction
Vera West
Costume Design
Saul A. Goodkind
Editor
Russell A. Gausman
Bernard B. Brown
Sound Director
Music
Abraham Grossman
Ford Beebe
Director
Hal Mohr
Director of Photography
Maurice Leblanc
Characters
Producer