This definitely isn't Lulu Wilson's first time dipping her toes into the horror genre. The young star has been making audiences scream in films like Ouija: The Origin of Evil (alongside Elizabeth Reaser, who actually plays the adult version of Shirley in the show) and Annabelle: Creation. In this series, Shirley is the precocious oldest sister trying to protect her siblings while also finding her own place in the world.