King of Chinatown

Anna May Wong

Dr. Mary Ling

Akim Tamiroff

Frank Baturin

J. Carrol Naish

The Professor

Sidney Toler

Dr. Chang Ling

Philip Ahn

Robert 'Bob' Li

Anthony Quinn

Mike Gordon

Bernadene Hayes

Dolly Warren

Roscoe Karns

Rip Harrigan

Ray Mayer

Potatoes

Richard Denning

Jeff, Protective Association Henchman

Archie Twitchell

Interne

Eddie Marr

Bert, Fight Trainer

George Anderson

Detective

Charles B. Wood

1st Gangster

George Magrill

2nd Gangster

Charles Trowbridge

Dr. Jones

Lily King

Chinese Woman

Chester Gan

Mr. Foo

Pat West

Announcer at Fight

Guy Usher

Investigator