Knuckles The Enchida

Knuckles is a Enchida in the Sonic series. He was first an enemy but in later games he started to partner up with Sonic The Hedgehog. He can be grumpy sometimes yet he has saved the world many times. He also is selfish but that doesn't mean he's a jerk. He is 15-17 years old.

History
We first see Knuckles on Eggman's side. He guards the chaos emeralds. We later see him again in Sonic and Knuckles as the main villian. He later appears in Sonic Adventure as a good guy. He then appears in other games as a good guy.