Dennis Dun is an American actor known for his film career, often in memorable supporting roles. His most iconic role is that of Wang Chi, Jack Burton's skilled and loyal friend, in John Carpenter's cult classic *Big Trouble in Little China* (1986).

He collaborated again with Carpenter in *Prince of Darkness* (1987). Dun also played a significant role in Bernardo Bertolucci's *The Last Emperor* (1987), where he portrayed Pu Wei, the Emperor's brother. Other notable appearances include *Year of the Dragon* (1985).

He is known for portraying characters on screen who are often wise, honest, and loyal, serving as a foil or guide for the protagonists, balancing their eccentricity or impulsiveness. His discreet yet effective presence made him a recognizable face in 1980s and 1990s cinema.