Amy is a cheerful, though slightly erratic girl, with a positive attitude and boundless energy. However, she has a scary temper and her infatuation with Sonic makes her shortsighted and a bit obsessive about him, having followed him everywhere since meeting him

Shadow is evil and arrogant, refusing to work with others even if it means completing his goals but he can sometime be an unlikely ally to Sonic depending on the situation.

In the games and media, Knuckles is independent, headstrong, devoted to his duty, Loyal, tough, shy around girls, and slightly gullible.

Shadow is a loner at heart, angsty anti-hero, brooding, aloof, edgy, mysterious, dark, bold, straight forward, straight-shooting, self-assured, independent, sharp-witted, unfriendly.

Sonic is spontaneous, curious, quick-witted, and enthusiastic. He has an optimistic and forward-looking nature. He’s also sweet, nice, kind, and selfless

Rouge is mischievous, flirty, nice, stealthy, ambitious, sassy, cheeky, and strong-minded