Boris Karloff

Mr. James Lee Wong

Marjorie Reynolds

Roberta 'Bobbie' Logan

Grant Withers

Police Capt. Bill Street

Huntley Gordon

Mr. Davidson

George Lynn

Capt. Guy Jackson

William Royle

Capt. Jaime

James Flavin

Police Sgt. Jerry

Lotus Long

Princess Lin Hwa

Lee Tung Foo

Willie

Bessie Loo

Lilly May

Ernie Stanton

Bailey

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

Angelo Rossitto

Mute Dwarf

Guy Usher

Police Commissioner

Richard Loo

Tong Chief

Mr. Wong, Detective

The Mystery of Mr. Wong

Mr. Wong in Chinatown

The Fatal Hour

Doomed to Die

Phantom of Chinatown