जीवनी: Roy Cheung Yiu-Yeung ( pinyin: Zhāng Yàoyáng; born 20 July 1964 in Hong Kong) is a Hong Kong-based actor, best known on-screen for his roles as Triad gangsters in a number of films. Description above from the Wikipedia article Roy Cheung, licensed under CC-BY-SA,full list of contributors on Wikipedia.