No matter what he does, Dr Chen's long black hair seems to always be getting out of control.

Tall for an oriental at 6', he is clearly past his peak: age lines his face and he looks perpetually tired except when with his daughter Simone or his wife-to-be Emma.

Dr Chen is the North Wind, the Greater Yin. He is both a Turtle and a Snake, although his Snake is missing. He is the Emperor of the North Heavens, the leader of the Celestial Army. He is the most powerful creature in creation, his elements are Water, Death and Darkness. His number is One. He was created by the Enchanted Demon to destroy the world, self ascended and has imprisoned the demons keeping them in hell and away from humanity

He is normally addressed as 'Dark Lord' although 'Your Imperial Highess' is also correct.