The cast lineup for American Horror Story Season 13 is already sending horror fans into complete meltdown mode. Names currently attached to the season reportedly include Sarah Paulson, Evan Peters, Ariana Grande, Angela Bassett, Jessica Lange, Kathy Bates, Emma Roberts, Billie Lourd, Gabourey Sidibe, Leslie Grossman, John Waters and more. Fans are especially freaking out over the return of franchise legends alongside newer additions, with many already calling this one of the most stacked AHS ensembles ever assembled. If this cast list is real, Season 13 could become absolute television chaos in the best way possible.