Knuckles the Echidna

Knuckles is friends with the hedgehog trio, and especially good friends with Manic. He often refers to himself as, "Knuckles the Cool Echidna", clearly adamant about his social status of being cool. In the Christmas Special Manic informs Knuckles he's not allowed in his house because Knuckles stole from them last year but he gains entry regardless because he had KFC. He was also presumed dead, in https://www.youtube.com/watch?v=YWYSTp9z8_Y