Chui Man-kin (born May 16, 1983), better known as Chui Tien-you or Tien You or "TY", is an Hong Kong actor, singer, writer and director.
Known For: Acting
Birthday: 1983-05-16
Place of Birth: Hong Kong, British Crown Colony [now China]
Also Known As: Tien You Chui, 徐天佑