Who is the creator and writer of all the movies in the Chucky and Child's Play horror franchise?
Cult of Chucky: Cult of Chucky is a 2017 American supernatural slasher film written and directed by Don Mancini, who is the "Child's Play" franchise's creator and sole writer to date. Chucky (Child's Play):  He was created by writer Don Mancini and is portrayed and voiced by Brad Dourif in both live-action and voice-over.
Don Mancini