Arthas Menethil
Arthas Menethil, the Lich King, is a human-turned-undead former paladin who became a death knight after pursuing Frostmourne and merging with the Lich King, donning the Helm of Domination.
He rules over the Scourge, bringing terror to Azeroth.
He is impulsive, protective, and stoic, estranged from his family, and enjoys practicing dark magic.
Notably, he trained as a paladin of the Silver Hand.