Katie Doyle was born June 25, 1979 in Chicago, Illinois.  This vegetarian became popular when she joined MTV's Road Rules: The Quest in 2001.  Her Real World/Road Rules Challenge debut was in The Gauntlet, and she has since appeared in Inferno, Battle of the Sexes II, Gauntlet II, Fresh Meat, and Gauntlet III.  In 2004, she appeared as an extra in The Hillz, portraying the role of a partygoer.  She was also seen in the following episodes of Lost: “Man of Science, Man of Faith” in 2005 and “Flashes Before Your Eyes” in 2007.  Katie was also cast for one episode of Kill Reality, a show that documents reality stars as they all act for the first time in a Hollywood horror film.

(Photo courtesy of MTV)