金泰亨 (Jin Taiheng) is the Chinese name for the South Korean actor Jin Seon-kyu. To say his name in Engpsh, you would simply say "Jin Taiheng" or "Jin Seon-kyu". It is important to respect the individual's preferred name and pronunciation. If you are not sure how to pronounce a person's name, it is always a good idea to ask them or to look up the correct pronunciation.