Katherine Karev Potter was adopted into a better home, when her twin brother Alex, beat the crap out of their biological father, they ended up being separated when they were sixteen and she was soon adopted by Anthony Potter, one of the most known doctors in the United States, he's won two Harper Avery's and has been giving Katherine the best life, he cared so much about her, that he wouldn't let his daughter get hurt. Katherine soon goes to Seattle and sees her brother again and then she meets Mark Sloan and falls deeply in love with him. Katherine Karev Potter x Mark Sloan Grey's Anatomy: Season one-eight STARTED: 10:13:20 FINISHED: 00:00:00