Silver the Hedgehog (シルバー・ザ・ヘッジホッグ, Shirubā za Hejjihoggu) is the (former) secondary antagonist-turned-tritagonist of Sonic the Hedgehog (2006), the anti-heroic deuteragonist of Sonic Rivals and Sonic Rivals 2, a supporting character of Sonic and the Secret Rings, Sonic Riders: Zero Gravity, Sonic and the Black Knight, Sonic Free Riders, Sonic Colors, and Sonic Runners, the tetartagonist of Sonic Generations, and a major character of Sonic Forces.