Rose: An insecure teen who just started a new school...for like the 3rd time. She only has one family member left and that's her brother Shawn. They both have something to hide but her brother cares less about his secret vs hers.

Shawn: an 18 year old brother who would give anything to make sure his sister is okay. He helps her when she needs it most. He acts as the parent sometimes though because of them living alone. He started a new school as well and is having a better time adjusting to it compared to his sister.

It: the demon who inhabits Rose's mind. It can cause some pretty bizarre events to happen if you aren't careful. Shawn has it too but his is nicer.