The Diamond Wizard

Dennis O'Keefe

Joe Dennison

Margaret Sheridan

Marline Miller

Philip Friend

Insp. McClaren

Alan Wheatley

Thompson Blake

Francis de Wolff

Yeo

Eric Berry

Hunziger

Gudrun Ure

Sgt. Smith

Seymour Green

Lascelles

Paul Hardtmuth

Dr. Eric Miller

Colin Tapley

Sir Stafford Beach

Michael Balfour

Hoxie

Cyril Chamberlain

Castle

Paul Carpenter

Mickey Sweeney (uncredited)

Helga Cranston

Editor

Steven Pallos

Producer

John C. Higgins

Writer

Matyas Seiber

Music, Conductor

Dennis O'Keefe

Director

Jim O'Connolly

Assistant Director

Montgomery Tully

Director

Charles Leeds

Production Manager

Gordon Lang

Director of Photography

Arthur Graham

Camera Operator

Denis Wreford

Art Direction

W. H. Lindop

Sound Recordist

Maurice Procter

Book

Charles Nash

Makeup Artist

Adele Reynolds

Continuity