Can't find the name of an actor??

I've been searching for this for over two hours but the internet has nothing to say? I'm trying to figure out who plays the woman that chucky is inside of, and the name of the character. Its the woman who calls tiffany 'Tiff'. I believe she is in the apartment with them in s1 e5 when they're slaughtering people, and they frequently bicker and threaten to kill each other. Its not Nica, but a person that is frequently killing/torturing nica. The wikipedia page and imdb are making me feel insane