James Lee Wong

Boris Karloff

Police Capt. Sam Street

Grant Withers

Asian Man

Bruce Wong

Police Guard

Jack Kennedy

Willie

Lee Tung Foo

Ballstics Expert

Wilbur Mack

Police Detective

Dick Morehead

Police Lt. George Devlin

Joe Devlin

Charades-Player

I. Stanford Jolley

Valerie Edwards

Dorothy Tree

Peter Harrison

Craig Reynolds

Michael Strogonoff

Ivan Lebedeff

Prof. Ed Janney

Holmes Herbert

Brandon Edwards

Morgan Wallace

Drina

Lotus Long

Sing

Chester Gan

Carslake

Hooper Atchley

Director

William Nigh

Writer

Hugh Wiley

Executive Producer

Scott R. Dunlap

Screenplay

Scott Darling

Producer

William T. Lackey

Director of Photography

Harry Neumann

Editor

Russell F. Schoengarth

Production Manager

Charles J. Bigelow

Music

Edward J. Kay

Art Direction

E.R. Hickson

Assistant Director

W.B. Eason