Conal Cochran

Conal Cochran is the owner of Silver Shamrock and the main antagonist of Halloween III: The Season Of The Witch, he is the titular "witch" of the movie (more accurately a warlock) who seeks to resurect the pagan aspects of Halloween via the mass-murder of many children using weaponry disguised within masks sold by his company: despite being a "witch" he mainly utilized android minions to dispose of his enemies.