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
Sam Ash
Barber (uncredited)
Marie Burton
Nightclub Girl (uncredited)
Dolores Casey
Nightclub Girl (uncredited)
Ethel Clayton
Nightclub Patron (uncredited)
Wong Chung
Chinese Man (uncredited)
Sheila Darcy
Nightclub Girl (uncredited)
Dorothy Dayton
Nightclub Girl (uncredited)
Paula DeCardo
Dancer (uncredited)
Raoul Freeman
Detective (uncredited)
Norah Gale
Nightclub Girl (uncredited)
George Golden
Nightclub Patron (uncredited)
Harriette Haddon
Dancer (uncredited)
Robert Homans
Detective (uncredited)
Gwen Kenyon
Fight Spectator (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)
Herbert J. Biberman
Story
Lillie Hayward
Screenplay
Harold Hurley
Producer
Irving Reis
Screenplay
Nick Grindé
Director
Hans Dreier
Art Direction
Robert Odell
Art Direction
Eda Warren
Editor
Edith Head
Costume Design
A. E. Freudeman
Set Decoration
Glenn Rominger
Sound Recordist
Leo Tover
Director of Photography
Charles Hisserich
Sound Recordist
Boris Morros
Music Director
George Templeton
Assistant Director
Alvin Ganzer
Assistant Director
William LeBaron
Executive Producer
Stuart Walker
Associate Producer
Richard Olson
Sound
Gladys Unger
Additional Writing
Stuart Anthony
Additional Writing
Robert Yost
Additional Writing