David Chiang Da-wei (born Chiang Wei-nien on 29 June 1947 in Shanghai, Republic of China) is a Hong Kong actor, director and producer. A martial arts superstar in the 1970s under the Shaw Brothers Studio, he has appeared in over 130 films and over 30 television series.Born in a thespian family, he is the younger brother of Paul Chun and an older half-brother of Derek Yee.