The witch doctors. Sage conjurers, enchanters, and mystical warriors who are driven by a charge to maintain spiritual balance and harmony in the violent world of Sanctuary. They command ancient magics rooted in the primal powers of life and death, and are adept at summoning fearsome, shadowy creatures. A witch doctor is armed with simple talismans, fetishes, rough carvings... and endless ravening throngs of vengeful spirits set to bring destruction at their master's command.
Learn more about the witch doctor and other Diablo III heroes here: http://reveal.diablo3.com/en_US/class_gathering/witch_doctor