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

Rep Harrigan

Ray Mayer

Potatoes

Richard Denning

Interne

Archie Twitchell

2nd Interne

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

Raoul Freeman

Detective (uncredited)

Eddie Marr

Henchman Bert

Wong Chung

Chinese Man

Sam Ash

Barber (uncredited)

Marie Burton

Nightclub Girl (uncredited)

Dolores Casey

Nightclub Girl (uncredited)

Ethel Clayton

Nightclub Patron (uncredited)

Sheila Darcy

Nightclub Girl (uncredited)

Dorothy Dayton

Nightclub Girl (uncredited)

Paula DeCardo

Dancer (uncredited)

Norah Gale

Nightclub Girl (uncredited)

George Golden

Nightclub Patron (uncredited)

Harriette Haddon

Dancer (uncredited)

Robert Homans

Detective (uncredited)

Gwen Kenyon

Nightclub Girl (uncredited)

Judith King

Nightclub Girl (uncredited)

Charles Lee

Tommy Wu (uncredited)

Grace Lem

Chinese Woman (uncredited)

Joyce Mathews

Nightclub Girl (uncredited)

Larry McGrath

Henchman (uncredited)

Ivan Miller

Politician (uncredited)

Moy Ming

Businessman (uncredited)

Helaine Moler

Nightclub Woman (uncredited)

Alexander Pollard

Heath - Baturin's Butler (uncredited)

Cyril Ring

Fight Spectator (uncredited)

Ben Taggart

Henchman (uncredited)

Jimmy Vaughn

Slugger Grady (uncredited)

Luana Walters

Nightclub Girl (uncredited)

Pierre Watkin

Dist. Atty. Philips (uncredited)

Dorothy White

Nightclub Girl (uncredited)

Gloria Williams

Nightclub Girl (uncredited)

Florence Wix

Nightclub Patron (uncredited)