Haha! Thank you so much for the comment :D I cast Cas as Sunny, the baby sister who likes to chew things, hence the teeth. This (http://edu.glogster.com/media/4/31/44/45/31444575.jpg) is Sunny from the book covers, and this (http://upload.wikimedia.org/wikipedia/en/thumb/d/dc/Sunnysnicket.jpg/200px-Sunnysnicket.jpg) is her in the movie. Don't worry, you're right, it's not a horror movie at all!