Full name: Sonic the Hedgehog Species: Hedgehog Gender: Male Height: 100cm Weight: 35kg Loves freedom and hates boredom and injustice. His favorite food is chili dogs. Usually a carefree joker, but in critical moments, he displays a ferocity and sharpness that makes him seem like a different person.

Full name: Miles Prower Species: Fox Gender: Male Height: 80cm Weight: 20kg Can fly using his two tails. He loves tinkering with machines and develops various mechs. Inspired by Sonic's speed, he started following him before he knew it. Sonic's reliable partner.

Full name: Knuckles the Echidna Species: Echidna Gender: Male Height: 110cm Weight: 40kg A wild and powerful echidna. The one capable of controlling the Master Emerald. Sonic's rival (one-sided) and fighting buddy (one-sided). Possesses incredible punching power.

Full name: Amy Rose Species: Hedgehog Gender: Female Height: 90cm Weight: It's a secret! A female hedgehog who fell in love with Sonic at first sight. Spirited, kind, and a cheerful mood maker. She fights using her favorite Piko Piko Hammer. She is constantly trying to get Sonic to marry her.

Full name: Shadow the Hedgehog Species: Hedgehog Gender: Male Height: 100cm Weight: 35kg A jet-black hedgehog who looks exactly like Sonic. The Ultimate Lifeform created by Eggman's grandfather, Professor Gerald. He has no interest in good or evil and is extremely proud.

Full name: Silver the Hedgehog Species: Hedgehog Gender: Male Height: 100cm Weight: 35kg A psychokinetic hedgehog from the future. He has a strong sense of justice and would risk his life for world peace and people's smiles. He possesses enough power to hold his own against Sonic and Shadow.

Full name: Blaze the Cat Species: Cat Gender: Female Height: 95cm Weight: "I-I couldn't possibly say that!" (Self-reported) Princess of the Sol Empire and guardian of the Sol Emeralds. She can manipulate fire. Usually calm and collected, but it seems she is using her reason to suppress deep-seated emotions.

Full name: Unknown Species: Human Gender: Male Height: 185cm Weight: 128kg A selfish and egoistic self-proclaimed evil genius scientist. Loves mechs more than anything. Extremely confident and proud, he is prone to throwing tantrums. Nicknamed Egghead.