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)

William Bailey

Detective (uncredited)

Edward Biby

Party Guest (uncredited)

Sidney Bracey

Squad Car Driver (uncredited)

Egon Brecher

Vasseur (uncredited)

Harvey Clark

Hotel Assistant Manager (uncredited)

Chester Clute

Reporter (uncredited)

Sidney D'Albrook

Detective Alois (uncredited)

Frank Dawson

François - Butler (uncredited)

Helen Dickson

Woman Passenger at Dock (uncredited)

George Douglas

Gendarme (uncredited)

Jay Eaton

Man in Hotel Lobby (uncredited)

Stanley Fields

André - Horse Groom (uncredited)

Christian J. Frank

Detective (uncredited)

Otto Fries

Truck Driver (uncredited)

John Harmon

'Butch' Harron - Gang Leader (uncredited)

Ruth Hart

Telephone Operator (uncredited)

Dell Henderson

Plainclothes Detective (uncredited)

Perry Ivins

Fingerprint Man (uncredited)

Robert Emmett Keane

Bill Watkins - Criminologist (uncredited)

Joe King

Inspector Hennessey (uncredited)

Priscilla Lawson

Switchboard Operator (uncredited)

Frank Leigh

English Eddie (uncredited)

Mitchell Lewis

Detective (uncredited)

Tony Merlo

Party Guest (uncredited)

Robert Middlemass

Sergeant (uncredited)

Edmund Mortimer

Man at Hotel Desk (uncredited)

Jack Norton

Hotel Manager (uncredited)

Bob O'Connor

Gendarme (uncredited)

Leonard Penn

Reporter (uncredited)

Jean Perry

Gendarme (uncredited)

Lillian Rich

Telephone Operator (uncredited)

William Royle

Burly Detective (uncredited)

Larry Steers

Man Leaving Hotel (uncredited)

Harry Tyler

Reporter (uncredited)

Jacques Vanaire

Gendarme (uncredited)

Pierre Watkin

Mr. Carter (uncredited)

Frank Whitbeck

Radio Broadcaster (voice) (uncredited)