Okay, so I did my rates for Murder House and I really think a big chunk should be cut.

I only even remembered some of these characters because I just rewatched the season this week.
Vivien's gynecologist, the two detectives investigating Constance and the one investigating Ben, Beau, Constance's husband, Tate's victims from the school shooting, the two nurses, the re-enactors (minus the one that was Ben's patient), the tour guide, and the Ramos family are all just unnecessary. And that's just for Murder House.
