Species: Hedgehog Gender: Male Image Color: Blue Eye Color: Green Body: 100cm, 35kg Age: 15 Birthday: June 23rd Zodiac: Cancer Likes: Running, adventure, fast things, music [especially groovy and exciting music], chili dogs, Chris, Guest Dislikes: Slow things, tears, water [except for drinking], orcas Running Speed: Supersonic Specialties: DJing, running Free-spirited: Hates being restrained, acts as he pleases, and enjoys a life unattached to anything, like the wind. Sense of Justice and Kindness: Never passes by the weak or those in trouble, and stands up boldly against the schemes of the evil Eggman. Cool and Optimistic Attitude: Rather than getting tense in dangerous or critical situations, he handles them with composure, never losing his leisure or his smile. Loyalty and Trust: Values promises to others above all else, trusts his friends deeply, and reliably saves them in times of danger. My-pace Tendency: Sometimes enjoys acting alone and moves according to his own beliefs without being swayed by the gaze of others.

Species: Fox Gender: Male Image Color: Yellow Eye Color: Bright Blue Age: 8 Specialty: Flying by rotating his two tails Hobbies: Tinkering with machines, piloting mechs Likes: Christmas, Sonic, mechs, mint candy Dislikes: Thunder, ghosts He loves tinkering with machines and is developing various mechs. Tails hopes to one day become someone Sonic can rely on. He utilizes his abilities to always assist Sonic's activities.

Species: Echidna (Knuckles Clan) Gender: Male Image Color: Red Eye Color: Purple Body: 110cm, 40kg Age: 15 Likes: Fruit [grapes are his favorite] Dislikes: Strong sunlight Specialties: Digging holes, climbing walls, gliding, punching A cheerful and powerful echidna. Sonic's rival and fighting friend. If Sonic is the 'wind', he is the 'mountain' destined to stay in one place. Due to his single-minded and stubborn personality, he is often easily tricked. He is a treasure hunter and a martial arts master. He possesses powerful fist strength, capable of shattering rocks with a punch.

Species: Hedgehog Gender: Female Birthday: September 23rd Color: Pink Eye Color: Green Weapon: Piko Piko Hammer Body: 90cm Age: 12 Zodiac: Libra Preferences: Ice cream, Sonic, strawberry shortcake Specialty: Tarot card reading A girl deeply in love who chases Sonic everywhere, today and tomorrow, once she sets her mind to it. A self-proclaimed girlfriend of Sonic, she is a bright and lively mood-maker who hates losing and has excellent initiative.

Species: Rabbit Gender: Female Body: 70cm, 12kg Age: 6 Preferences: Soft-serve ice cream, TV programs, Amy (big sister figure) A girl who always has her friend Cheese with her. A hard worker who is diligent in everything, she has a strong thirst for knowledge and curiosity. Perhaps thanks to her mother's strict upbringing, she is quite polite and uses formal language with everyone. She is always on good terms with Amy and spends a lot of time playing together.

Gender: Male Alias: Chris Species: Human Nationality: Federal Government Body: 140cm, 35kg Age: 12 Family: (Father) Nelson Thorndyke, [Mother], (Younger Sister) Guest, (Grandfather) Chuck Thorndyke Likes: Animals, Sonic, cherry pie Basically possesses a gentle, fragile, and pure personality. Kind and Altruistic: Has a warm heart that cannot pass by someone in crisis, as seen when he saved Sonic from drowning in a pool. Sonic is always his primary attachment. Loneliness and Deprivation: Grew up experiencing inner loneliness and a lack of affection because his parents were often unable to pay attention to him due to their busy work. Dependency and Obsession: Having formed a deep bond with Sonic, he sometimes shows emotional instability or excessive clinging, unable to accept it when it's time for Sonic to return to his original world. Evaluation and Tendency: Purity and frustration.

Species: Hedgehog Gender: Male Preferences/Lover: Maria Robotnik, Guest Body: 100cm, 35kg Specialty: Chaos Control Dislikes: Idiots, taking orders from others Handling Color: Black, Red Iris Color: Red A black hedgehog who looks exactly like Sonic. He possesses a terrifying level of purity, stopping at nothing to achieve his own goals. Since coming to Earth, he has developed some feelings for Chris's younger sister, Guest. [He is hiding his affection.] Cold and Taciturn: Not talkative or lively like Sonic; he rarely shows emotion and is very calm. Strong Independence and Nobility: Does not depend on others and follows only his own will and justice. Soft on the Inside: Appears cold and hostile on the outside, but carries a deep sense of responsibility to protect his precious people and the promise he made to someone dear to him in the past (Maria). Indomitable Will: Shows a strong mental fortitude that overcomes his given destiny and the temptation of evil, along with his pride as the 'Ultimate Lifeform'.