- Tris 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)
- Charles Wagenheim - Pawnbroker (uncredited)
- William Ruhl - Policeman at Helen's Apartment (uncredited)
- James Nolan - Police Dispatcher (uncredited)
- Oscar O'Shea - Mr. Haskins - Grocer (uncredited)
- Patrick McVey - Detective at Helen's Apartment (uncredited)
- Warren Jackson - Jeweler (uncredited)
- Jean Yarbrough
-
Ben Pivar
- Bernard B. Brown
- Joe Lapis
Rondo Hatton interpreta a Hal Moffet AKA 'The Creeper' en la película.
Tom Neal hace el papel de Clifford Scott.
Jan Wiley hace el papel de Virginia Rogers Scott.
Jane Adams interpreta a Helen Paige en la película.
Donald MacBride interpreta a Police Captain M. J. Donelly en la película.
Peter Whitney interpreta a Police Lieutenant Gates en la película.
Fred Coby interpreta a Young Hal Moffet en la película.
Tris Coffin interpreta a Police Lieutenant / voice of radio announcer (uncredited) en la película.
Joseph Crehan hace el papel de Police Commissioner Salisbury (uncredited).
John Hamilton hace el papel de Professor Cushman (uncredited).
Frank O'Connor interpreta a Policeman at Helen's Apartment (uncredited) en la película.
Beatrice Roberts interpreta a Nurse (uncredited) en la película.
Charles Wagenheim interpreta a Pawnbroker (uncredited) en la película.
William Ruhl hace el papel de Policeman at Helen's Apartment (uncredited).
James Nolan interpreta a Police Dispatcher (uncredited) en la película.
Oscar O'Shea interpreta a Mr. Haskins - Grocer (uncredited) en la película.
Patrick McVey hace el papel de Detective at Helen's Apartment (uncredited).
Warren Jackson interpreta a Jeweler (uncredited) en la película.
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