First off let it be known that this post includes MAJOR SPOILERS for the second season of Hulu and J.J Abrams’ Stephen King anthology series Castle Rock. If you haven’t seen the full second season yet, look elsewhere for your morning entertainment. That said, let’s hear what star Lizzy Caplan had to say on the season’s super-grim ending.
Caplan tells TVLine: “There was a version of a different ending that we thought we were going to do when we were halfway through shooting the season. And then it became very, very clear that this was the only way to end it. Annie had to kill Joy. It wouldn’t have had the same emotional impact if she had killed somebody else and Joy witnessed it, and then that caused their future emotional estrangement. None of it seemed to carry enough of an emotional gut-punch as killing Joy…. We wanted the audience to constantly be questioning whether Annie was going to kill Joy.“
She continues: “There’s this pull in that direction, and Annie spends so much time fighting that pull. We wanted this specter that’s hanging over Annie for the whole season: Will she kill Joy? Deep down, Annie was conscious of that fear, and Joy probably was, as well. And we just didn’t want to end the season with a whimper. We wanted to end it with a bang where [Annie’s] deepest fear about herself would actually come to pass.”