William Powell
— The Robber
Kay Francis
— Baroness Teri Hohenfels
Helen Vinson
— Marianne Horn
Hardie Albright
— Paul
Henry Kolker
— Baron Franz Hohenfels
Spencer Charters
— Johann Christian Lenz
Lee Kohlmar
— Hollander
André Luguet
— Count Andre
Clarence Wilson
— Prefect of Police
George Davis
— Polacheck, the President's Secretary (uncredited)
Ivan Linow
— Chauffeur (uncredited)
Alan Mowbray
— Detective Fritz
Charles Coleman
— Charles (uncredited)
Ruth Donnelly
— Berta, Teri's Maid (uncredited)
Lawrence Grant
— Professor Bauman (uncredited)
Don Brodie
— Robber (uncredited)
Eddie Kane
— Robber (uncredited)
Leo White
— Assistant Robber (uncredited)
Sheila Terry
— Blonde Decoy (uncredited)
Jay Eaton
— Leopold, Assistant Jewelry Manager (uncredited)
Harold Minjir
— Jewelry Clerk (uncredited)
Jack Chefe
— Jewelry Salesman (uncredited)
Harold Waldridge
— Jewelry Clerk (uncredited)
Jacques Vanaire
— Jewelry Manager (uncredited)
Blanche Payson
— Masseuse (uncredited)
Marie Burton
— Maid (uncredited)
Paula DeCardo
— Maid (uncredited)
Sheila Darcy
— Maid (uncredited)
Alma Ross
— Maid (uncredited)
Norah Gale
— Maid (uncredited)