Olivia Wilde (born Olivia Jane Cockburn; March 10, 1984) is an Irish-American actress and model. She began acting in the early 2000s, and has since appeared in a number of film and television parts, including roles in the series The O.C. and The Black Donnellys. She portrayed Dr. Remy "Thirteen" Hadley in the TV drama House. And in 2010 starred as Quorra in Tron: Legacy.
source : http://en.wikipedia.org/wiki/Olivia_Wilde