Oniro

Oniro was a male Human and was the Grandmaster of the Lin Kuei before its reformation.

History
Its not known how long Oniro held the title of Grandmaster except that he was present before the order was given to automate their ninja assassins. He was present when both Cyrax and Sektor went through the cybernetic process at which point both Sub-Zero and Smoke rebelled. The two friends and attempted to escape the Lin Kuei but only Sub-Zero managed to escape Oniro who managed to captured Smoke and force him through the cybernetic process.

Despite forcing many of his former studets into becoming cyber ninjas, Oniro himself remained Human. He would later attempt to hunt down Sub-Zero with the automised Smoke but this failed when Smoke went against his programming. The Grandmaster would fall into a chasm but he managed to transform into a large bird to escape his death.

Background
Oniro was a master ninja who possessed the ability to change his form into that of any animal which provided him a great level of skill in combat. He was even capable of changing parts of his body rather then transform entirely into an animal as evidened by his capacity to transform his arms into sharp cat-like claws to help enhance his fighting style. One of his forms was even capable of spitting out fire at his enemies.

He was well trained enough to outfit Smoke easily and possessed enough power to break large rock with a simple strike from his hand. He wore a version of the ninja uniform used by the Lin Kuei which was white in color.

Source

 * Defenders of the Realm - Old Friends Never Die