He is Zavok, the leader of the Deadly Six and sub-antagonist to Eggman in Sonic Lost World.
There have been other Sonic bad guys, Mephiles in 06, Neo Metal Sonic in Heroes and Chaos in Adventure to name a few. If you count the Shadow the Hedgehog game there's also Black Doom.
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Evil-Tree
Mar 04, 2016 at 03:56PM EST in reply to
Evil-Tree
Mar 04, 2016 at 04:43AM EST