The Mystery Man

Robert Armstrong

Larry Doyle

Maxine Doyle

Anne Ogilvie

Henry Kolker

Ellwyn A. 'Jo-Jo' Jonas

LeRoy Mason

The Eel, Gangster

James Burke

Managing Editor Marvin

Guy Usher

District Attorney Johnson

James P. Burtis

Whalen

Monte Collins

Dunn, Reporter

Sam Lufkin

Weeks

Otto Fries

Nate, Pawnbroker

Norman Houston

T. Fulton Whistler

Dell Henderson

Mr. Clark, Hotel Manager

Lee Shumway

Plainclothes Man

Sam Flint

Jerome Roberts, Publisher

Stanley Blystone

Bar Waiter (uncredited)

Harry Harvey

Baggage Handler (uncredited)

Rollo Lloyd

Reporter (uncredited)

Bruce Mitchell

Traffic Policeman (uncredited)

Frank O'Connor

Train Depot Waiter (uncredited)

Herb Vigran

Fingerprint Man (uncredited)