The Secret of the Whistler

Richard Dix

Ralph Harrison

Leslie Brooks

Kay Morrell

Michael Duane

Jim Calhoun

Mary Currier

Edith Marie Harrison

Mona Barrie

Linda Vail

Claire Du Brey

Laura - Harrison's Servant

John Hamilton

McLaren aka Mac (uncredited)

Byron Foulger

Jorgensen (uncredited)

George Sherman

Director

Richard H. Landau

Screenplay

Raymond L. Schrock

Screenplay

Allen G. Siegler

Director of Photography

Dwight Caldwell

Editor

Rudolph C. Flothow

Producer