For the primary universe counterpart, see Lee Kuan.

In the mirror universe, Lee Kuan was a Terran male who lived on Earth during the 21st century.

Kuan, a barbaric tribalist who fused his empire's reborn technologies with the hardened lifestyle of nomadic tribesmen, was one of two leaders who emerged as a predominant world power in the later half of the 21st century, the other being Colonel Phillip Green, a cunning and charismatic man with a penchant for genocide.

Kuan and Green sparred warily, engaging their respective territories, for the better part of a decade, before enlightened self-interest finally resulted in a détente. Unwilling to risk their conquests on an uncertain battle, both commanders decided that a final cataclysmic clash would be too risky and so the two met in secret to carve up the remainder of the world and rebirth the Terran Empire.

As Kuan and Green set about taming the remainder of Terra, they discovered a hidden base off the coast of Hawaii, where a maverick inventor named Zefram Cochrane was gambling his future on the development of the new warp drive. With his revolutionary engine, Cochrane planned to colonize the Solar system, and then return to master Earth. However, Kuan and Green discovered him before he could finish his experiments, which resulted in him offering up his research in return for his life. Cochrane's ship, the Phoenix, broke the light speed barrier with the backing of the Terran Empire. (Decipher RPG module: Through a Glass, Darkly)