Tom Conway, Private Investigator
Helen Pascall
Gina, a model
Mr. Mercedes
Capt. Colin Simpson
Detective Inspector MacLeod
Lady Marchant
Mme. Fernande
Eddie
Miss Betty, Showroom Mistress
Detective Sgt. Jessup
Inspector
Marlowe
Heath
Chelsea
Blonde
Jane, model with shoulder-length hair
George
A Seamstress
Harry, the Night Watchman
Stevenson
Commissionaire
Chauffeur
Vivian
Self - Singer-Pianist (uncredited)
Nightclub Patron (uncredited)
Fashion Show Attendee (uncredited)
Policeman (uncredited)