4 Crazy Grey's Anatomy Theories Every Fan Should Know About

It's not uncommon that fans of different shows will find some overlap with actors, then theorize that the universes might intertwine. One fan pointed out that actress Samantha Sloyan was also on Parks and Recreation for one episode. Her character's name on that show is Erica, but we know Grey's Anatomy's Penny moves every two years with her mother. Why couldn't she have lived in Pawnee and maybe changed her name along the way?