Bill Tung Biu (Chinese: 董驃) (March 30, 1933 in Hong Kong — February 22, 2006) was a Hong Kong actor and horse racing commentator. Tung started off as a horse jockey with his family racing horse stable. He was then recruited to become a horse racing commentator. Due to his fame, he was invited to act in many movies from 1949 to 1996, many of them with Jackie Chan during the 1980s and 1990s.