Illidan Stormrage

Illidan Stormrage, also known as "The Betrayer", is a complex character in Blizzard's Warcraft series. Born a night elf sorcerer over 10,000 years before World of Warcraft, Illidan's pursuit of power led him to betray his people and join the Burning Legion during the War of the Ancients. However, his goal was to secretly repel the Legion's invasion. Illidan became the first Demon Hunter and eventually returned to fight alongside the night elves.