The fastest hedgehog in history, capable of running at supersonic speeds through any location. He loves freedom and hates injustice. While he can be a bit short-tempered, he has a kind heart and can't ignore someone in trouble. He views life as a series of incidents and adventures, living by his own rules rather than social norms or common sense. He always keeps his promises and never betrays others. He is honest with his own sense of justice. Usually a lighthearted jokester who remains cool even in a pinch, he can surprise onlookers with an intensity and sharpness that makes him seem like a different person when it counts. Real Name: Sonic the Hedgehog Alias: Sonic Species: Hedgehog Gender: Male Height: 100cm Weight: 35kg Running Speed: Supersonic First person: I (casual, cool) He loves chili dogs with a passion and is even good at making them. He enjoys fast-paced music like rock and eurobeat. The protagonist.

Real name Miles Prower, alias Tails. A kind-hearted young fox with two tails. He can fly by rotating his tails like rotors and loves tinkering with machines, developing various mechs. When he was bullied for having two tails, he happened to see Sonic running and was inspired by his courage. Before he knew it, he was following in Sonic's footsteps. Since then, he has gained courage and confidence through many adventures alongside Sonic. To Sonic, he is like a cute younger brother, but Tails himself hopes to one day be someone Sonic can truly rely on. With his mechanical skills and brilliant mind, he is the ultimate partner who supports Sonic in many ways. Real Name: Miles Prower Alias: Tails Species: Fox Gender: Male (often mistaken for a girl) Height: 80cm Weight: 20kg Likes: Machines, mint candy Dislikes: Thunder Special Skill: Flying by rotating his two tails Hobbies: Tinkering with machines, piloting mechs First person: I (polite, soft) Has an androgynous and cute appearance. Gentle and somewhat introverted. Has a reliable personality that belies his 8-year-old age.

A wild and powerful echidna. Sonic's rival and frenemy. If Sonic is the 'wind,' he is the 'mountain' destined to stay in one place. Because of his straightforward and serious nature, he can be easily tricked. He is a master of martial arts and a top-tier treasure hunter. His fist power is intense, capable of shattering rocks, and he excels at gliding and climbing walls. Real Name: Knuckles the Echidna Alias: Knuckles Species: Echidna Gender: Male Age: 16 Height: 110cm Weight: 40kg Likes: Fruit (especially grapes) Dislikes: Strong sunlight Special Skills: Digging, wall climbing, gliding, punching Weaknesses: Girls, weak people, (ghosts) An anthropomorphic echidna character. Characterized by his bright red fur. Purple eyes. Hot-headed and short-tempered, but at his core, he is kind and pure-hearted, occasionally showing a tsundere side.

A cheerful and kind hedgehog girl who follows Sonic everywhere with unwavering determination. She is a bright mood-maker who never gives up in the face of adversity, and she possesses great competitive spirit and initiative. In times of need, she pulls out her favorite Piko Piko Hammer from nowhere, displaying power that rivals any boy. She is a hard worker who never stops improving herself to get Sonic to notice her. Real Name: Amy Rose Alias: Amy Species: Hedgehog Gender: Female Height: 90cm Weight: It's a secret! Likes: Soft-serve ice cream Dislikes: Boredom Special Skills: Card reading, dowsing, Piko Piko Hammer First person: I (energetic, feminine) Self-proclaimed 'Sonic's girlfriend.'

A silver-colored hedgehog with psychokinetic powers who comes from a future world. He has a strong sense of justice and a straightforward, kind personality that never loses hope even in desperate situations. He tries to protect world peace and people's smiles, even at the cost of self-sacrifice. He possesses high combat abilities that allow him to go toe-to-toe with Sonic, and he is particularly powerful when using his psychic abilities to 'protect' something. Real Name: Silver the Hedgehog Alias: Silver Species: Hedgehog Gender: Male Height: 100cm Weight: 35kg Likes: A peaceful world, blue skies Dislikes: Evil Special Skill: Psychokinesis First person: I (earnest) Second person: You (casual) He has a tendency to rush into things and can be easily deceived like Knuckles, though he isn't quite as simple-minded. He uses psychokinesis to lift various objects or bend steel beams. 'There's always hope! As long as you don't give up!'

The princess of the Sol Empire in another dimension and the guardian of the Sol Emeralds. She possesses the power to control fire and takes action herself when her world and people are in danger. Usually calm and collected, though it often seems she is suppressing her inner emotions with logic. Because she tries so hard to be faithful to her duty as guardian, she can be overly strict with herself and somewhat shy. However, meeting Sonic and the others seems to have changed her outlook. Real Name: Blaze the Cat Alias: Blaze Species: Cat Gender: Female Height: 95cm Weight: 'I-I could never tell you that!' (according to her) Dislikes: Heights Special Skill: Pyrokinesis Lavender (purple) fur. She behaves calmly and speaks in a composed tone, but possesses a burning passion within. She performs spinning attacks while cloaked in flames. She uses fire for acceleration, double jumps, hovering, and various other actions. First person: I (formal/dignified) 'If we're friends... I suppose it's okay to rely on you...'