Helene Chadwick
— Mary (uncredited)
Robert Dudley
— Theatre Employee Shooting Victim (uncredited)
William Gould
— San Francisco Police Detective (uncredited)
Mahlon Hamilton
— Witness (uncredited)
William Henry
— Alan E. Saunders (uncredited)
J. Anthony Hughes
— Chet (uncredited)
Frank Shannon
— Detective Hewitt (uncredited)
Ben Taggart
— Police Detective (uncredited)
William Tannen
— MGM Crime Reporter Jim (uncredited)
Harry Tyler
— Dave Mayne (uncredited)