Secrets of the Lone Wolf

Warren William

Michael Lanyard

Ruth Ford

Helene de Leon

Roger Clark

Paul Benoit

Victor Jory

'Dapper' Dan Streever

Eric Blore

Jamison

Thurston Hall

Inspector Crane

Fred Kelsey

Wesley Dickens

Victor Kilian

Colonel Costals

Marlo Dwyer

'Bubbles' Deegan

Lester Sharpe

Deputy Duval

Irving Mitchell

Mr. Evans

John Harmon

Bernard

Joe McGuinn

Bob Garth

Wheaton Chambers

Vanderbeek (uncredited)

Ken Christy

Doorman (uncredited)

James Conaty

Jewel Buyer (uncredited)

Bob Reeves

Police Officer (uncredited)

Walter Sande

Squad Car Officer (uncredited)

Harry Strang

Squad Car Driver (uncredited)

John Tyrrell

Toledo Patterson (uncredited)

Werner R. Heymann

Original Music Composer

Leigh Harline

Original Music Composer

Sidney Cutner

Original Music Composer

Lionel Banks

Art Direction

Ben Oakland

Original Music Composer

Morris Stoloff

Music Director

Gregory Stone

Original Music Composer

Philip Tannura

Cinematography

Richard Fantl

Editor

Edward Dmytryk

Director

Stuart Palmer

Story, Screenplay

Louis Joseph Vance

Novel

Jack Fier

Associate Producer

Eugene Joseff

Costume Design