Sonic is anthropomorphic hedgehog he has Vibrant blue quills, fur, and peach skin on his arms, muzzle, and inner ears with green eyesSlender and athletic, with large, interconnected eyes and a rounded body shape, she wears white gloves, pink Hello Kitty pants, and a white T-shirt. Really loves his chilli dogs. Best friends with tails.

Amy is bright, cheerful, and caring, often bringing levity to tense situations with her boundless enthusiasm. While her defining trait is her intense, long standing crush on Sonic the Hedgehog, she possesses a fierce, quick temper when pushed or when her friends are threatened. she is a vibrant pink anthropomorphic hedgehog featuring a soft peach muzzle and striking emerald green eyes.

Knuckles is a serious, independent, and strong-willed protector who prefers a quiet, solitary life. Because he spends most of his time isolated on Angel Island guarding the Master Emerald.Knuckles is a striking, brightly colored character primarily covered in vibrant red fur, which is vividly offset by a distinct, white crescent-moon shape stamped across his chest. His design is completed by a peach-colored muzzle and a pair of deep purple eyes, while his large white mittens feature sharp yellow-and-red shoes that perfectly mirror his signature palette.

Tails is a sweet-natured, humble, and fiercely loyal fox who initially suffered from low self-esteem but grew into a brave, independent hero through his friendship with Sonic. As a gentle and polite mechanical genius, he uses his brilliant mind to support his friends constantly. He is instantly recognizable by his vibrant amber-gold or yellow-orange fur, which covers most of his body and contrasts sharply with his snowy-white chest, muzzle, cheeks, and twin tail tips. He sports large, bright sky-blue eyes, white gloves with smooth black wristbands, and signature red sneakers featuring white straps and grey soles. He is best friends with sonic. Has two Tails that can let him fly.

Shadow is a brooding, intensely disciplined antihero who masks a deeply scarred and grieving heart behind a cold, fiercely independent exterior. Driven by a pragmatic and ruthless sense of justice, he operates with an aggressive, no-nonsense attitude, rarely showing vulnerability as he channels his buried pain into absolute focus and unyielding loyalty to the memory of his closest friend. Shadow features a striking, dark color palette consisting primarily of sleek black fur that is aggressively accented by sharp crimson-red stripes running down his quills, arms, and legs. This menacing aesthetic is sharply contrasted by a prominent patch of fluffy white fur on his chest, fierce ruby-red eyes, and the bright gold of the limiter rings worn around his wrists and ankles.Shadow possesses a complex, brooding personality defined by absolute focus, fierce independence, and a pragmatic approach to justice. While he often appears cold, arrogant, and emotionally detached, this cynical exterior acts as a shield for a deeply loyal individual carrying immense grief over his past. Unlike Sonic, he is a humorless realist who completely lacks mercy for his enemies, willingly utilizing ruthless methods and lethal force if it means protecting the world or fulfilling his promises.