Private Practice regular and Grey's Anatomy guest star Caterina Scorsone plays Derek's little sister, Amelia Shepherd, who rather memorably hooked up with Sloan in the Grey's episode she appeared in earlier this season. But, before she wriggled her way into the Grey's universe, she considered becoming a real doctor. Scorsone has been acting since the age of 8, but, after she finished undergrad, she took a pre-med course and contemplated leaving acting behind for good. Thankfully for Sloan, she realized she didn't really want to be a doctor — just play one on TV.
Says Scorsone of the experience, "I remember coming to the end of the medical lecture series and thinking, 'I don't think I want to be a doctor. I think I just want to be on Grey's Anatomy.'" And voila! Her dream came true. We're sure being on Grey's is just as satisfying as med school, Caterina. And it's way cheaper!