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Cheng Kai-Chung, also known as Andy Cheng, is a Hong Kong actor, stuntman, choreographer, martial artist, and director. He was a prominent member of the Jackie Chan Stunt Team from the late 1990s to early 2000s until he broke out on his own and became a member of the Stunts Unlimited team. He has doubled for Chan on occasion when Chan suffered serious injuries, and Chan saved his life on the set of Rush Hour 2 when a boat stunt went awry. Cheng has been working steadily as both a director and stunt coordinator. Description above from the Wikipedia article Andy Cheng, licensed under CC-BY-SA, full list of contributors on Wikipedia.