Welcome to American Horror Story Helena, we hope you enjoy your stay. Helena Mattson of the short lived 666 Park Avenue and sci-fi film, Species: The Awakening has been cast for the newest season of the popular FX horror anthology show, American Horror Story. Mattsson revealed this news by posting an image of a backlot on her Instagram account with the caption “Another day at work. Getting ready to film some scary stuff.. #thatsallicansay #americanhorrorstory”. No details about her role on the show has been released as of late, but according to her IMDb her character’s name will be Agnetha. Mattsson joins Lady Gaga, Emma Roberts, Kathy Bates, Angela Bassett, Sarah Paulson, and Evan Peters in American Horror Story: Hotel which will premiere in October. Comments comments