Sonic (born 3183) is a mutant hedgehog who is an enemy of Dr. Robotnik, Master Chief, and Mario. His ally is Tails. King Harkinian hates him for some reason, possibly because he prefers Mario's games, and ran him down with his car once. Despite this, he fought on King Harkinian's side during the battle with the evil forces of Ronald McDonald.
- "If someone tries to touch you in a way or a place that makes you feel uncomfortable, that's no good."
- "Get out there!"
- "Even you can learn something from a sloth!"