Hal Moffet AKA 'The Creeper'

Clifford Scott

Virginia Rogers Scott

Helen Paige

Police Captain M. J. Donelly

Police Lieutenant Gates

Young Hal Moffet

Joan Bemis (as JaNelle Johnson)

Mary Ann Obringer (uncredited)

Police Lieutenant / voice of radio announcer (uncredited)

Police Commissioner Salisbury (uncredited)

Professor Cushman (uncredited)

Policeman at Helen's Apartment (uncredited)

Nurse (uncredited)

Pawnbroker (uncredited)

Policeman at Helen's Apartment (uncredited)

Police Dispatcher (uncredited)

Mr. Haskins - Grocer (uncredited)

Detective at Helen's Apartment (uncredited)

Jeweler (uncredited)