MR. WONG, DETETIVE

Boris Karloff

James Lee Wong

Grant Withers

Police Capt. Sam Str...

Maxine Jennings

Myra Ross

Evelyn Brent

Olga Petroff / Count...

George Lloyd

Devlin

Lucien Prival

Anton Mohl

John St. Polis

Carl Roemer

William Gould

Theodore Meisle

Hooper Atchley

Christian Wilk

John Hamilton

Simon Dayton

Wilbur Mack

Russell

Lee Tung Foo

Tchin

Lynton Brent

Tommy

Grace Wood

Mrs. Roemer

Frank Bruno

Lescardi (uncredited...

Ed Cassidy

Ambulance Doctor (un...

Wheaton Chamber...

Chemistry Lab Direct...

Clancy Cooper

Warehouse Man (uncre...

George DeNorman...

John (uncredited)

Lester Dorr

Coroner (uncredited)

William T. Lack...

Produtor(a)

William Nigh

Diretor(a)

Houston Branch

Roteirista

Scott R. Dunlap

Produtor(a)

Scott R. Dunlap

Production Manager

Karl Zint

Recording Supervisio...

Russell F. Scho...

Editor(a)

Hugh Wiley

Original Story

Harry Neumann

Diretor(a) de Fotogr...

Edward J. Kay

Original Music Compo...

Charles J. Bige...

Production Manager

Gordon Bau

Makeup Artist

Harry Grundstru...

Props

Abe Meyer

Music Director

E.R. Hickson

Technical Supervisor

W.B. Eason

Assistant Director