Bowser

Bowser (also known as Lord Bowser by his minions, King Koopa in the cartoons) is the main antagonist throughout the Mario franchise. Bowser is the leader of the | Koopa Troop, and has been Mario's arch-nemesis since his first appearance in the Mario series, in the 1985 video game, | Super Mario Bros.. His ultimate goals are to kidnap the leader of the Mushroom Kingdom, Princess Peach, defeat his arch-nemesis, Mario and conquer the Mushroom Kingdom. Unfortunately for Bowser, his evil plans are always foiled by Mario.