donnie yen (born 27 july 1963), also known as yen ji-dan (甄子丹), is a chinese-born hong kong actor, martial artist, movie director, producer and action choreographer. he is also a wushu world champion many times. he is best known for his role as ip man in the "ip man" (2008–2015) trilogy movies. he also appeared in "shanghai knights" (2003), "flash point" (2007) and "rogue one" (2016).