King of Chinatown

Dr. Mary Ling

Anna May Wong

Frank Baturin

Akim Tamiroff

The Professor

J. Carrol Naish

Dr. Chang Ling

Sidney Toler

Robert 'Bob' Li

Philip Ahn

Mike Gordon

Anthony Quinn

Dolly Warren

Bernadene Hayes

Rip Harrigan

Roscoe Karns

Potatoes

Ray Mayer

Jeff, Protective Association Henchman

Richard Denning

Interne

Archie Twitchell

Bert, Fight Trainer

Eddie Marr

Detective

George Anderson

1st Gangster

Charles B. Wood

2nd Gangster

George Magrill

Dr. Jones

Charles Trowbridge

Chinese Woman

Lily King

Mr. Foo

Chester Gan

Announcer at Fight

Pat West

Investigator

Guy Usher

Barber (uncredited)

Sam Ash

Nightclub Girl (uncredited)

Marie Burton

Nightclub Girl (uncredited)

Dolores Casey

Nightclub Patron (uncredited)

Ethel Clayton

Chinese Man (uncredited)

Wong Chung

Nightclub Girl (uncredited)

Sheila Darcy

Nightclub Girl (uncredited)

Dorothy Dayton

Dancer (uncredited)

Paula DeCardo

Detective (uncredited)

Raoul Freeman

Nightclub Girl (uncredited)

Norah Gale

Nightclub Patron (uncredited)

George Golden

Dancer (uncredited)

Harriette Haddon

Detective (uncredited)

Robert Homans

Fight Spectator (uncredited)

Gwen Kenyon

Nightclub Girl (uncredited)

Judith King

Tommy Wu (uncredited)

Charles Lee

Chinese Woman (uncredited)

Grace Lem

Nightclub Girl (uncredited)

Joyce Mathews

Henchman (uncredited)

Larry McGrath

Politician (uncredited)

Ivan Miller

Businessman (uncredited)

Moy Ming

Nightclub Woman (uncredited)

Helaine Moler

Heath, Baturin's Butler (uncredited)

Alexander Pollard

Fight Spectator (uncredited)

Cyril Ring

Henchman (uncredited)

Ben Taggart

Slugger Grady (uncredited)

Jimmy Vaughn

Nightclub Girl (uncredited)

Luana Walters

Dist. Atty. Philips (uncredited)

Pierre Watkin

Nightclub Girl (uncredited)

Dorothy White

Nightclub Girl (uncredited)

Gloria Williams

Nightclub Patron (uncredited)

Florence Wix