Boris Karloff

James Lee Wong

Marjorie Reynolds

Bobbie Logan

Grant Withers

Inspector Bill Street

Huntley Gordon

Mr. Davidson

George Lynn

Captain Guy Jackson

William Royle

Captain Jaime

James Flavin

Sergeant Jerry

Lotus Long

Princess Lin Hwa

Lee Tong Foo

Willie

Bessie Loo

Lilly May

Richard Loo

Tong Chief

Ernie Stanton

Burton

I. Stanford Jolley

Palisser Hotel Clerk

Jack Kennedy

Sgt. Brady

Donald Kerr

Taxi Driver

Wilbur Mack

The Coroner

Moy Ming

Aged Tong Member

Bruce Mitchell

Police Officer at Explosion