Prince of Quel'Thalas, son of King Anasterian, and a Kirin Tor archmage.
When Arthas Menethil destroyed his kingdom and defiled the Sunwell, Kael'thas renamed the survivors sin'dorei — Blood Elves, children of blood — and led them in search of a cure for their arcane withdrawal.
He took them through the Dark Portal into Outland and fell in with Illidan Stormrage.
