Chris Ryan, who plays radio DJ Caligari, is a real-life radio DJ for KEGL in Dallas, Texas. Much of his DJ ranting was adlibbed.
The killer is based on a real-life female serial killer named Jane Toppan (1857-1938) a Boston-born nurse whom murdered at least 30 people (mostly hospital patients) in the New England area from the mid-1880s to 1901.
The Halloween costume worn by Brinke Stevens was originally her signature outfit made famous during the 1980s.
Hayden Tweedie's debut.