Kaos

Kaos is the main villain in the console version of Skylanders Spyro's Adventure and the upcoming sequel Skylanders: Giants, his role as the main villain is acquired by Hektore in the 3DS version. He is voiced by Richard Horvitz who also did the voice of Zim. He is the archenemy of the Skylanders.

History
Before he became evil, it was said that Kaos was born a prince. While his brothers were blessed with long, flowing locks, Kaos was bald, ugly, and devastatingly smelly. His father dismissed Kaos as an embarassing runt, and the prince kicked his father in the widdershins, gave away his royal name, and headed out into the wilderness along with his equally-ugly butler, Glumshanks. Desperate for companionship of the non-troll variety, Kaos set to work on trying to build friends of his own out of wood. Remarkably, he actually had some success, and thus the mannequin people known as the Wilikin were born. Unfortunately, Kaos being Kaos, even his own creations could not bear to be around him.