Melvyn Douglas

Rene Farrand aka Arsene Lupin

Virginia Bruce

Lorraine de Grissac

Warren William

Steve Emerson

John Halliday

Count de Grissac

Nat Pendleton

Joe Doyle

Monty Woolley

Georges Bouchet

E. E. Clive

Alf

George Zucco

Prefect of Police

Rollo Lloyd

Duval

Vladimir Sokoloff

Ivan Pavloff

Ian Wolfe

A. Le Marchand - Detective (as Ien Wulf)

Tully Marshall

Monelle

Jonathan Hale

F.B.I. Special Agent

George Davis

Guard at Dock (uncredited)

King Baggot

Detective (uncredited)

George Fitzmaurice