Katie Liu Leung (traditional Chinese: 梁佩詩; simplified Chinese: 梁佩诗; pinyin: Liáng Pèishī; Cantonese Yale: Lèuhng Pui-sī; born 8 August 1987) is a Scottish actress, best known for playing Cho Chang, Harry Potter's love interest in the film versions of the J. K. Rowling novels Harry Potter and the Goblet of Fire and Harry Potter and the Order of the Phoenix. She is set to reprise the role in Harry Potter and the Half-Blood Prince due out 15 July 2009.