Ronald Bi Jen-hsu (born 4 December^[1] 1938^[2]), known by his stage name Chin Han, is a retired Hong Kong actor, director, screenwriter and producer born in mainland China. He has appeared in over 50 Mandarin-language films in Hong Kong and Taiwan, many of them produced by the Shaw Brothers Studio in the 1960s and the 1970s.

Born in Weihai,^[3] Republic of China, Pi Jen-hsu moved to Hong Kong as a small child during the Japanese occupation of Hong Kong.^[4] After finishing from New Method College, his first career was in a hong. In 1961, he entered Shaw Brothers Studio, working as a script supervisor for director Yueh Feng. In 1964, he rose to fame when Yueh Feng cast him in a major Huangmei opera film Lady General Hua Mu-lan, opposite superstar Ivy Ling Po.^[2]

In 1966, Chin Han married Ivy Ling Po. They moved to Taiwan in 1973 where they continued to work in the film industry^[2] until immigrating to Canada in the late 1980s. After retirement, they made guest appearances in their son Kenneth Bi's directorial debut Rice Rhapsody (2004).^[3]