Knuckles the Echidna

Knuckles the Echidna is a character in Sonic the Hedgehog 3 and Sonic the Hedgehog(2006). He is voiced by Michael McGarahan, Ryan Dummond, Dan Green, Travis Willaghem, and Dave Michelle.

History
Knuckles spent his life on Angel Island and Sky Sanctuary, when he met Sonic for the first time, he took all the Chaos Emeralds. He wanted them to be Super Knuckles, but Eggman stole the Master Emerald. So Knuckles joined Sonic and Tails to get it back.

Transformations

 * Super Knuckles
 * Hyper Knuckles
 * Chaos Knuckles