Bowser

Bowser is a main character in Mushroom Plush Kingdom. He is the arch-nemesis of Mario. He always kidnaps the princess or he gets Mario in trouble.

Biography
After his father died in a car crash and his mother died giving birth to Bowser, he got adopted by Kamek who trained him to be evil. Bowser met Clawdia Koopa who he soon married and got 7 children with. Clawdia died, it isn't explained how. He and Kamek took care of his 7 children and made them as evil as possible. Bowser felt lonely so he kidnapped Queen Peach (Who was still a princess at the time) but she got saved by Mario. He and Mario became enemies. He got kidnapped by Dry Bowser Jr. so he could ressurect his dead father. This resulted into Bowsers clone, Dry Bowser.

Trivia

 * This is the only character who has a clone of himself. (In this case Bowser Jr. got one too but he isn't a character in the series)