Olivia Jane Cockburn, most known as Olivia Wilde (New York City, March 10, 1984) is an American actress. She began acting in the early 2000s, and has since appeared in a number of film and television parts, including roles on the series The O.C. and The Black Donnellys. She currently portrays Dr. Remy "Thirteen" Hadley in the TV drama House.
Her parents, her grandparents and her uncle are all journalist, and she said that as a result of her family background, she has a "strong journalistic streak", being "really critical and analytical".

In 2007, Olivia was a part of the ensemble cast of the short-lived NBC midseason drama The Black Donnellys. Her character, Jenny Reilly, was the lone principal female character in the series following the lives of an Irish-American family tied to organized crime in New York City. Also in 2007, Olivia appeared in the play Beauty on the Vine, a political thriller, playing three different characters.
She joined the cast of the Fox medical drama House in autumn 2007, playing a young doctor, Dr. Remy Hadley, nicknamed Thirteen, who works closely with Dr. House. Olivia told Star magazine how she sometimes takes cues from her character even when she's not working, saying, "I'm now convinced that I'm a doctor. I mean, if someone says they have a pain, I'm like, 'Well, that's your spleen.'

Olivia has dual citizenship between the United States and Ireland; she married Italian-American documentary filmmaker, photographer and flamenco guitar player Tao Ruspoli on June 7, 2003, in Washington; they eloped, marrying on a school bus with only a pair of witnesses. They currently live and work in Venice, Los Angeles, California.