The fourth part of Blizzard's Diablo III character class video series gives an overview of the Witch Doctor, a magic-based class akin to Diablo II's Necromancer class. He uses abilities that terrify and confuse enemies, turning the tides of a battle in his favor, rather than simply overcoming waves of enemies.
Unlike some of the other classes, whose character's represent an entire order or society, the Witch Doctor is very much alone - He goes into exile after accusing his fellow shamen of being corrupted by evil.
Diablo III will be in stores on May 15th.