If the reader chooses to take a tour of the Hasley toy factory, there is a chance that the reader will encounter this vicious doll.
Nasty Kathy wears a pink dress that has her name stitched on it. She has big blue eyes and long eyelashes; brown hair that's held in two pigtails with pink ribbons, rosy cheeks, little pink heart shaped lips, and two rows of small, sharp teeth. She also has a pull string on her back.
- Nasty Kathy is likely named for Chatty Cathy, a pull string "talking" doll created by Mattel.
- She may also be inspired by Chucky, the killer doll from the Child's Play franchise.