Scourge is a evil version of Sonic the hedgehog. He is known by evil sonic anti-sonic or sonic x.
Scourge and Fiona Fox are now together. Scourge has two scars on his chest beacuse while he was transforming into super scourge Locke (the father of Knuckles) punched him before scourge could trasform. He also got his green hair that way. Before he had blue hair and green eyes like sonic.
Scourge first appeared in archie sonic the hedgehog issuse 11.