The actual name or identity of this warrior is unknown. However, based on the markings of his uniform, it is believed he belongs to the Lin Kuei, a legendary clan of Chinese ninja.
After receiving the title of grand champion, Sub-Zero disappears back in to the shadows from which he came. His only goal in the tournament was... the assassination of Shang Tsung. He was paid a large some of money by one of Tsung's wealthy enemies. With his mission accomplished, Sub-Zero will collect this fortune and retire from his dangerous profession.