Professor Richard Wanley
Alice Reed
Frank Lalor
Dr. Michael Barkstane (as Edmond Breon)
Heidt / Tim
Inspector Jackson
Mrs. Wanley
Claude Mazard / Charlie
Collins
Streetwalker (uncredited)
Club Member (uncredited)
Man at Club (uncredited)
Man in Taxi (uncredited)
Dickie Wanley (uncredited)
Onlooker at Gallery (uncredited)
Elsie Wanley (uncredited)
Blonde (uncredited)
Police Driver (uncredited)
Boy with Mother (uncredited)
Garage Man (uncredited)
News Vendor (uncredited)
Toll Collector (uncredited)
Police Officer Dillon (uncredited)
Traffic Cop (uncredited)
Newsreel Camerman (uncredited)
Bar Patron (uncredited)
Fred (uncredited)
Club Steward (uncredited)
Motorcycle Cop (uncredited)
Radio Announcer (uncredited)
Pharmacist (uncredited)
First Elevator Operator (uncredited)
Pageboy (uncredited)
Stenographer (uncredited)
Newsreel Boy Scout With Glasses (uncredited)
Elevator Operator (uncredited)
Charlie (uncredited)
Mother by Elevator (uncredited)
William (uncredited)
Club Manager (uncredited)
Capt. Kennedy (uncredited)
Magazine Model (uncredited)
Man by Taxi (uncredited)