"Marked Woman! Gun-Moll! Killer Queen!"
A Chicago gang led by Slade carries out an audacious brokerage robbery. Lieutenant Bill Mason takes the case, continuing his friendly-enemy relationship with crime reporter Ann Rogers. One gang member is caught; eventually, others follow. But Mason hasn't a clue to Slade, principally because he's unaware she's a woman.
Lieutenant Bill Mason

Slade

Ann Rogers
Mary Jordan Powell

Mr. Hartford

Lefty Landers

Lieutenant Onslow

Art Seidel, Hotel Detective

Ruby / Mary Jordan

James 'Jimmy' Powell

Matt Willis

George Atkins

Big 'Sem' Semenoff

Mullen

James A. Pierce

Mr. Pinchback

Pinchback's Secretary
Mr. Tuckerman
Mrs. Tuckerman

Police Captain L. Andrews

Police Captain Lovell

Detective Frank

Joe, Police Clerk

Police Secretary

Police Radio Announcer
Mr. Barlowe
Room Service Waiter

Messenger with Package
Bellhop #1
Bellhop #2
Tied-Up Watchman
