American Horror Story is only in the pre-production stage of its fourth season set for fall 2014, and fans are left wondering which cast members will return or join the show.

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Five cast members have appeared in all three seasons of American Horror Story: Jessica Lange, Sarah Paulson, Evan Peters, Lily Rabe and Frances Conroy. Of these five cast members, only Lange and Paulson have confirmed that they are returning for season 4. Meanwhile, Peters has said that he would like to be a part of the season 4 cast, though nothing has been arranged quite yet.

Unfortunately for fans of Rabe, the actress is set to star in a new ABC drama called The Visitors, which may prevent her from also starring in American Horror Story in 2014. As for Conroy, the actress has not publicly discussed her potential involvement in season 4.

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Taissa Farmiga, who has starred in season 1 of American Horror Story in addition to season 3 (Coven), is set to film a horror-comedy movie this year called The Final Girls, which may or may not conflict with AHS season 4.

Kathy Bates and Angela Bassett were two of the most significant additions in Coven, and both actresses are hoping to return to play new characters in season 4.

Other actors who have appeared on previous seasons have not addressed the possibility of returning for season 4, such as Emma Roberts, Denis O'Hare or Zachary Quinto.

One actress who is hoping to join the cast of American Horror Story is Lea Michele. The Glee actress has a good working relationship with Ryan Murphy, who is in charge of both Glee and American Horror Story.

American Horror Story season 4 premieres in fall 2014 on FX.

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