Who Sonic the Hedgehog?

Voice cast. Ben Schwartz as Sonic the Hedgehog: An alien anthropomorphic blue hedgehog with superhuman speed who finds himself on the run from Robotnik and the United States government.

What is Sonic's true name?

In the Archie comics, Sonic's real name is revealed to be Olgilvie Maurice Hedgehog. He tries desperately to protect that information, possibly out of embarrassment. This name is not canon (official) in the game continuity, however, and he is simply known as Sonic the Hedgehog in the games.

Who is Sonic's twin?

The character of Tails is portrayed as a very sweet-natured and humble fox who, before he met Sonic, was often picked on because of his twin tails.