Career
He is of Chinese descent. Dun has had prominent roles in several films, notably Year of the Dragon (1985), Big Trouble in Little China (1986), The Last Emperor (1987), Prince of Darkness (1987), and A Thousand Pieces of Gold (1991), Warriors of Virtue (1997). In addition he has appeared in independent Asian American projects such as My American Vacation (1999) and My Life Disoriented (2006).
Foreign three seasons he was a regular cast member on the National Broadcasting Company television series Midnight Caller (1988–1991).
He has appeared onstage at East West Players, Berkeley Repertory, and Lodestone Ensemble.