Dr. Remy Hadley (Olivia Wilde) is best known as "Thirteen" due to her number card during eliminations for the fellowship. Her mother died when she was young as a result of Huntington's disease, a genetic illness which a child of a victim has a 50/50 chance of contracting. In the season 4 finale, she tested herself for this disease and the result came back positive, meaning that she does in fact have the disease and can expect to deteriorate and eventually die as a result of it.
When House had to choose between the people he wanted on his new team, due to Cuddy making him take Foreman back, he eliminated Thirteen. Cuddy then played right into his hands by saying that he can't have an all male team and he had to hire Thirteen as well.
Thirteen is the only currently-known doctor on the show that is not heterosexual; her bisexuality has been explored since the episode "Don't Ever Change." Dr. Foreman was the first character to judge her as such; House arrives at the same conclusion at the end of the episode. She has since made various jokes about dating girls while refusing to confirm or deny her sexuality. Although fairly ambiguous in the show, Olivia Wilde has confirmed that Thirteen is indeed bisexual in a July 2008 interview.
Hadley's compassion and care for others is one of her best traits, but she has major problems dealing with death and patients that are terminal, perhaps out of fear of her own mortality from her Huntington's disease.
Olivia Wilde was born Olivia Cockburn on March 10, 1984 in New York City. Although she grew up in Washington D.C., she spent her summers in Ireland and studied in the renowned Gaiety School of Acting in Dublin. She is the daughter of journalist parents Andrew and Leslie Cockburn and the granddaughter of writer James Helvick. Olivia attended Phillips Andover and was nearly kicked out "like seven times". After graduating, she moved to Los Angeles.
She got an internship job as a casting director for the movie The Girl Next Door. She was given a small role in the movie starring Elisha Cuthbert. Olivia also appeared in the films Alpha Dog and Turistas. On television, Olivia has had regular roles in the short-lived shows Skins and The Black Donnellys. The performance she is probably most known for is playing Alex Kelly, who had a bisexual relationship with Mischa Barton's character Marissa in The O.C.. In 2007, another big break came her way when she was cast in the new team of interns in the FOX medical drama House.
Olivia has been married to Tao Ruspoli, a documentary filmmaker, photographer, and flamenco guitar player, since she was 18 years old. They reside in Los Angeles, California.