Rondo Hatton
Hal Moffet AKA 'The Creeper'
Tom Neal
Clifford Scott
Jan Wiley
Virginia Rogers Scott
Jane Adams
Helen Paige
Donald MacBride
Police Captain M. J. Donelly
Peter Whitney
Police Lieutenant Gates
Fred Coby
Young Hal Moffet
Janelle Johnson Dolenz
Joan Bemis (as JaNelle Johnson)
Mary Ann Bricker
Mary Ann Obringer (uncredited)
Tristram Coffin
Police Lieutenant / voice of radio announcer (uncredited)
Joseph Crehan
Police Commissioner Salisbury (uncredited)
John Hamilton
Professor Cushman (uncredited)
Frank O'Connor
Policeman at Helen's Apartment (uncredited)
Beatrice Roberts
Nurse (uncredited)
