Cho was the writers' first pick to play the foster home's father figure, Slater says, as they had been searching for "a world-class actor" who could anchor the season the way Geena Davis did in season 1. Besides, they're going to put Andy through "the emotional wringer," he adds: As a product of foster care, Andy had started the home with his wife — but now, as a widower, his biggest goal is to make sure he makes a difference in each of his foster children's lives and protects them no matter what happens. So when strange things start happening on the island, his home begins to feel less like paradise and a lot more like, well, a haunted house. As Slater puts it, "All hell breaks loose." What else would you expect?

The Exorcist returns on Friday, Sept. 29, at 9 p.m. ET on Fox.