Sarah Paulson
Sarah Paulson is playing three roles: Ms. Wilhemina Venable, Cordelia Goode from AHS: Coven and Billie Dean Howard from AHS: Murder House. She will also direct this year.
Kyle Allen
AHS newcomer Kyle Allen is playing Timothy Campbell.
Leslie Grossman
Leslie Grossman has quite the extravagant character name: Coco St. Pierre Vanderbilt.
Evan Peters
Evan Peters is playing two roles, his AHS: Murder House character Tate Langdon and Mr. Gallant.
Joan Collins
Joan Collins joins the AHS troupe as Evie Gallant, grandmother to Evan Peters' character.
Adina Porter
Adina Porter will take on the role of Dinah Stevens.
Ashley Santos
AHS newcomer Ashley Santos is playing Emily.
Billie Lourd
Billie Lourd is playing a character simply named Mallory. From the looks of it, she's a servant.
Cody Fern
Cody Fern is playing Michael Langdon, the son of Tate Langdon and Vivien Harmon from American Horror Story: Murder House.
Kathy Bates
Kathy Bates is playing one role (as of now), Ms. Miriam Mead.