Sonic the Hedgehog is the overarching antagonist of the There's Something About... web series created by Mashed.
He is a version of Sonic who, through mysterious means, wound up losing his friends. Obsessed with rebuilding his family, he is responsible for all of the events in the story, being that one to send the deranged version of Tails to Amy's world so that she could be part of his ever-growing ensemble of corrupt allies in order to destroy any and all realities with "fake" versions.