The Crime Doctor

Otto Kruger

Dan Gifford

Karen Morley

Andra

Nils Asther

Gary Patten

Judith Wood

Blanche Flynn

William Frawley

Fraser

Donald Crisp

Mr. Anthony, District Attorney

Frank Conroy

Martin Crowder

J. Farrell MacDonald

Kemp

Fred Kelsey

Bloodgood

G. Pat Collins

Walters

Samuel S. Hinds

Ballard

Wallis Clark

Judge Mallory (uncredited)

Willie Fung

Wah-Sing (uncredited)

Tom London

Detective at Airport Arrest (uncredited)

Pat O'Malley

Detective (uncredited)

Lee Phelps

Detective (uncredited)

Ethel Wales

Miss Farnum, Gifford's Secretary (uncredited)

Max Steiner

Music

Walter Plunkett

Costume Designer

John S. Robertson

Director

William Hamilton

Editor

Lucien N. Andriot

Director of Photography

Jane Murfin

Screenplay

Israel Zangwill

Story

Denzil A. Cutler

Sound

Fred Schuessler

Casting

Harry Redmond Sr.

Special Effects Supervisor

Don Wilkie

Technical Supervisor

Dick Stockton

Casting Assistant

Robert Palmer

Casting Assistant

Kennie Weaver

Casting Associate