'AHS 13': Paul Anthony Kelly Unpacks That Puzzling Ending and His 'Suave' Take on the Devil

Note: This story contains spoilers from "American Horror Story: 13" Episode 13. "American Horror Story" wrapped up its milestone 13th season with a rather puzzling ending. But for the actor who played the devil himself, it was the right way to end the tense battle between the witches and the root of all evil. This season, titled "13," followed as characters from previous installments of the FX anthology series came together to either fight against or conspire with the devil (Paul Anthony Kelly) as he aimed to win a bet with God to secure control over Earth and the human race. But . . .