ThirteenPlayed by: Olivia Wilde
Thirteen, of course, is not the real name of this character. However, it's what everyone now refers to Remy Hadley as because it was the number assigned to her during season four, when House used a Survivor-type game to choose his next team members.
A couple interesting facts about Thirteen: she has Huntington's disease; and she's a bisexual.
Near the end of season five, though, she began a relationship with Foreman.
Thirteen: It'll stop. In about 5 or 6 months, give or take, in your case.