Claim: The Man with the Iron Fists stars an actress.

Jamie Jilynn Chung -LRB- born April 10 , 1983 -RRB- is an American actress , blogger , and former reality television personality . She first gained fame in 2004 as a cast member on the MTV reality series The Real World : San Diego and subsequently through her appearances on its spin-off show , Real World/Road Rules Challenge : The Inferno II . She is regarded by many as the Real World alumna with the most successful media career .   She later transitioned into acting and has since become known for films , such as Dragonball Evolution , Grown Ups , Premium Rush , Sorority Row , The Hangover Part II , Sucker Punch , and Big Hero 6 and having been the series lead of the ABC Family television miniseries Samurai Girl . Chung received critical acclaim for her lead performance in the independent drama film about domestic human trafficking , Eden .   Since 2012 , Chung has appeared in the recurring role of Mulan in the ABC fantasy television series Once Upon a Time . An avid fashionista , she also created the blog What the Chung ?