Sonic the Hedgehog is the titular main protagonist of the anime series Sonic X. He is an anthropomorphic blue hedgehog, gifted with super speed, who fights Dr. Eggman and other forces of evil.
During a battle with Eggman, Sonic was transported along with his friends from their home planet to an alternate planet Earth. Lost and alone in this new world, he was saved from drowning in a pool by Chris Thorndyke, and the kind youngster allowed the heroes to take refuge at his mansion home as they defended their new residence from the evil plots of Dr. Eggman.
He was voiced by Jason Griffith, who also voiced Shadow the Hedgehog, in the English version, and Jun’ichi Kanemaru in the Japanese version.