In 1989, taekwondo grandmaster Jun Chong invited Hwang to come to the United States to appear as a villain in the film Street Soldiers. To bring an international flavor to the film, Hwang is credited in the film as "Jason Hwang", named after his son. In the early 1990s, Hwang returned to South Korea, where he ran a golf-tee Manufacturing company and an hotel in Seoul. Later on, Hwang managed a bodyguard agency. Since then he has made only occasional film appearances, in movies such as Emperor of the Underworld (1994) and Boss (1996). In July 1996, Hwang retired from acting at the age of 51.