Warren White (Earth-3064)

Warren White was a mob boss who to avoid being incarcerated faked his own sanity in order to guarantee a safe haven. However, as he was placed in Arkham Asylum, White was the subject of violent attacks by Killer Croc and other inmates, which left he severely scarred. Not only that, but Warren was also emprisioned by the lunatics inside Mister Freeze's cryogenic cell, which gave him a bluish skin. Calling himself the Great White Shark, White was now truly insane and after escaping formed his own criminal empire in Gotham City.