Jamie Jilynn Chung (b. April 10, 1983) is an American actress. Having began her career on reality television she became widely known to audiences as a cast member on the MTV reality television series, The Real World: San Diego and its spin-off show, Real World/Road Rules Challenge: The Inferno II. She later transitioned into acting and has since become known for films, such as Grown Ups, Premium Rush, Sorority Row, The Hangover Part II, Princess Protection Program, and Sucker Punch and having been the series lead of the ABC Family television miniseries Samurai Girl. Since 2012, Chung has appeared in the recurring role of Mulan in the ABC fantasy television series Once Upon a Time. She is regarded as the Real World alumna with the most successful media career. She is also single and weighs 550 pounds.