Lyric the Last Ancient (Voiced by Roger Craig) is the main antagonist of both Sonic Boom: Rise of Lyric and Sonic Boom: Shattered Crystal. He is a giant and monstrous snake-like cyborg from an ancient race whose main goal is to create and strengthen a robot army in order to carry out his nefarious deeds to destroy the world. Before he could carry out his nefarious deed, however, he was imprisoned. Over a millennium later, Lyric was freed and resumed his mission, but met opposition from Sonic the Hedgehog and his friends.