Silver the Hedgehog. 19,102 pages on this wiki. Silver the Hedgehog (シルバー・ザ・ヘッジホッグ, Shirubā za Hejjihoggu) is an anthropomorphic silver hedgehog and a hero in the Sonic the Hedgehog series of games, where he hails from at least 200 years in the future. He is a 14 year old hedgehog, weighing 35 kg and is 100cm tall (3ft and 3inches). His best friend is Blaze the Cat.