Richard Dix

William Everest

Janis Carter

Jean Lang

Jeff Donnell

Frances 'Francie' Lane

Loren Tindall

Charlie Kent

Tala Birell

Constantina Ivaneska

John Abbott

Kaspar Andropolous

Murray Alper

Joe Blainey, Elite Bakery Truck Driver

Nina Mae McKinney

Flotilda

Edythe Elliott

Mrs. Crawford

Otto Forrest

The Whistler

Jack George

Locksmith

Jack Gordon

Taxi Driver

Frank Hagney

Man Delivering Cake

I. Stanford Jolley

Motorist

Cy Kendall

Druggist

Kenneth MacDonald

John Crawford

Eddie Parker

Motorcycle Patrolman

Stanley Price

Richards, the Printer

Frank J. Scannell

Highway Patrolman

Forrest Taylor

Stage Door Guard

John Tyrrell

Clerk

Crane Whitley

Police Captain

Robert B. Williams

Highway Patrolman

Ernie Adams

Bit Part

Margia Dean

Bit Part

Sol Murgi

Restaurant Patron

Paul Power

Restaurant Patron

Der Whistler

Das Zeichen des Whistlers

Die Macht des Whistler

Voice of the Whistler

Der geheimnisvolle Gast

The Secret of the Whistler

The Thirteenth Hour

Die Rückkehr des Whistler