Ice King
Ice King, originally known as Simon Petrikov, is a central character in the Adventure Time franchise, evolving from a comical, inept villain into one of the show's most tragic and beloved figures. Once a kind-hearted human antiquarian, Simon was transformed into the Ice King after acquiring a magical crown that granted him cryokinetic powers but slowly drove him insane, altering his appearance with blue skin, a goblin-like nose, and a large white beard.