Helen
Professor Warren
Mrs. Warren
Dr. Parry
Blanche
Steve Warren
Mrs. Oates
Nurse Barker
Mr. Oates
Constable
Dr. Harvey (uncredited)
Neighbour (uncredited)
Murder Victim (uncredited)
The Killer's 'Shadow' (uncredited)
Starry-eyed Man (uncredited)
The Killer's 'Eye' (uncredited)
Freddy (uncredited)
Desk Clerk (uncredited)
Minister (uncredited)