Milk Carton Characters: Actors Who Mysteriously Disappeared From Our Favorite Shows
Morgan Matthews
Younger siblings didn’t last long on Boy Meets World. Eric and Cory started the first season with a little sister named Morgan. She was so adorable, Eric used to use her as bait to pick up women. But in the second season she was gone, never to be heard from again — until she showed up as an extra in season three.
Topanga also had a little sister on season one. Her name was Nebula. She only appeared in one episode before she disappeared for good.