Dr. Mary Ling

Frank Baturin

The Professor

Dr. Chang Ling

Robert 'Bob' Li

Mike Gordon

Dolly Warren

Rip Harrigan

Potatoes

Jeff, Protective Association Henchman

Interne

Bert, Fight Trainer

Detective

1st Gangster

2nd Gangster

Dr. Jones

Chinese Woman

Mr. Foo

Announcer at Fight

Investigator

Barber (uncredited)

Nightclub Girl (uncredited)

Nightclub Girl (uncredited)

Nightclub Patron (uncredited)

Chinese Man (uncredited)

Nightclub Girl (uncredited)

Nightclub Girl (uncredited)

Dancer (uncredited)

Detective (uncredited)

Nightclub Girl (uncredited)

Nightclub Patron (uncredited)

Dancer (uncredited)

Detective (uncredited)

Fight Spectator (uncredited)

Nightclub Girl (uncredited)

Tommy Wu (uncredited)

Chinese Woman (uncredited)

Nightclub Girl (uncredited)

Henchman (uncredited)

Politician (uncredited)

Businessman (uncredited)

Nightclub Woman (uncredited)

Heath, Baturin's Butler (uncredited)

Fight Spectator (uncredited)

Henchman (uncredited)

Slugger Grady (uncredited)

Nightclub Girl (uncredited)

Dist. Atty. Philips (uncredited)

Nightclub Girl (uncredited)

Nightclub Girl (uncredited)

Nightclub Patron (uncredited)

Writing

Writing

Directing

Production

Directing

Art

Editing

Art

Costume & Make-Up

Art

Sound

Camera

Sound

Sound

Directing

Directing

Production

Directing

Sound

Writing

Writing

Writing