We don’t refer to the character as Jigsaw in the series, but he very much has a jigsaw puzzle in his brain.
It’s not about his face, it’s about the psychological, which is really something we wanted to focus on this season.
It’s something more internal.
It’s about what he sees when he looks in the mirror rather than necessarily what other people see, because we didn’t want [Billy’s story] to be a horror show.
…
Every Netflix Original Holiday Movie Ranked on Cheese