as Robert Fleming
as Sandra Carpenter
as Harley Temple
as Charles van Druten
as Julian Wilde
as Nicholas Moryani
as Lyle Maxwell
as H.R. Barrett
as Detective Wilson
as Detective Gordon
as Lucy Barnard
as Matilda
as Nelson (uncredited)
as Pierre (uncredited)
as Sir Charles (uncredited)
as Professor Harkness (uncredited)
as Harry Milton (uncredited)
as Oswald Pickering (uncredited)
as Mrs. Miller (uncredited)
as Charles (uncredited)
as Fleming's Butler (uncredited)
as Old Man at Concert Asking for Whiskey (uncredited)
as Dowager Shushing Fleming at Concert (uncredited)
as Robert's Rejected Girlfriend (uncredited)
as Man in Dance Hall (uncredited)
as Man in Dance Hall (uncredited)
as Mike (uncredited)
as Blonde Nightclub Singer (uncredited)
as Blonde Nightclub Singer (uncredited)
as Nightclub Patron (uncredited)
as Nightclub Patron (uncredited)
as Nightclub Patron (uncredited)
as Police Criminologist (uncredited)
as Police Officer (uncredited)
as Police Officer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)
as Concertgoer in Lobby (uncredited)
as Concertgoer in Lobby (uncredited)
as Medical Examiner (uncredited)
as Assistant Medical Examiner (uncredited)
as Ticket Booth Clerk (uncredited)
as Blue Eyes (uncredited)
as Concertgoer (uncredited)
as Concertgoer (uncredited)