Lo was born in Laos in 1959 but moved to Cambodia in 1975, and later to Udon Thani, Thailand. Five years later, in 1980, he went to Hong Kong and worked as a tour guide. His idol was Bruce Lee which led him to practise Muay Thai and Taekwondo in Thailand. He won the freestyle fighting championships seven times so his chance finally came when he made his debut in Working Class (1985), which was directed by Tsui Hark and starred Sam Hui.

In 1986, Lo met Jackie Chan in a disco in Hong Kong, where he was head of security, and Chan hired him as his own bodyguard. Lo not only became Chan's bodyguard but also acted in many martial arts films. One of his best known roles is "John", the main villain and right-hand man of the British ambassador in Drunken Master II (1994). in which he and Chan engaged in a protracted final fight; Lo stepped in when another actor was injured. That climactic ten-minute fight sequence has become legendary: film critic Roger Ebert called it "one of the most remarkably sustained examples of martial arts choreography ever filmed."[citation needed]

In 2005, Lo acted in the American action film Into the Sun (2005) with Steven Seagal, with whom he was involved in a fight scene but the film was not very successful at the American box office. Lo is still very active in Hong Kong cinema.

Lo married Hong Kong actress Lai Sok-yin (黎淑賢) and they have two sons. The couple divorced in 2006. Edit Biography