Kalabar

Kalabar is the main antagonist in the first Halloweentown movie. He was a boyfriend of Gwen, daughater of Agatha Cromwell and she moved to the human world and married a human, this made Kalabar furious. Years later he went as Mayor of Halloweentown and he's been casting a spell turning all of the citizens of Halloweentown evil and then get frozen alive in the abandon movie theatre. But he was destroyed by Marnie and her family with the help of Merlin's talismin.