Cheng Sze Kit, commonly known as Clement Cheng, is a director, screenwriter, producer, and actor.
Born in Hong Kong, he moved to Canada as a child and grew up in Vancouver, coming back to Hong Kong only in 1997.
As a director and screenwriter, Cheng is mainly known for the 2010 action comedy movie "Gallants", which won the Hong Kong Film Award for Best Film at the 30th Hong Kong Film Awards.
(Source: Baidu Baike, Douban, Wikipedia)