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

Ray Walker

Joseph Aloysius 'Joe' Conroy

Claire Du Brey

Laura - Harrison's Servant

John Hamilton

McLaren aka Mac (uncredited)

Byron Foulger

Jorgensen (uncredited)

Ernie Adams

Arthur Space

Fred 'Snowflake' Toones

George Sherman

Director

Directing

Richard H. Landau

Screenplay

Writing

Raymond L. Schrock

Screenplay

Writing

Rudolph C. Flothow

Producer

Production

Herschel Burke Gilbert

Music

Sound

Allen G. Siegler

Director of Photography

Camera

Dwight Caldwell

Editor

Editing