Leon Ko Sai-tseung (Chinese: 高世章; pinyin: Gāo Shìzhāng) is a composer for musical theatre and films. He won a Richard Rodgers Development Award, a Golden Horse Award and numerous musical awards. His mother, Lucilla You Min (尤敏), was a famous actress in post-war Hong Kong Mandarin cinema and won "Best Actress" at the 1st Annual Golden Horse Awards and two consecutive Asian Film Festivals. His grandfather, Bak Yuk Tong (白玉堂), was a famous Cantonese opera artist, known as one of the Four Super Stars (四大天王).