is a blue hedgehog with super speed. 's 10 years old, and 's a sort of "hero" because there's a human named Eggman who wants to take over the world by destroying forests, polluting the environment, capturing defenseless animals, and so on. always manages to stop Eggman, but Eggman never gives up. found a small two-tailed fox named Tails, whom has been taking care of ever since found him. and Tails are like brothers. has friends like Knuckles the red echidna, and Amy the pink hedgehog. is kind to everyone except Eggman, whom enjoys teasing as revenge for Eggman's actions. is also strong, though not as strong as Knuckles. loves chili dogs. is usually quiet, but also brave. Tails: is 's best friend, and also like a little brother to , since takes care of him. Tails can fly with his two tails, and he's very intelligent even though he's only 4 years old. Knuckles: he's in charge of protecting a large green emerald, which is a "Chaos Emerald." has to collect them along the way, but only the smaller ones, not Knuckles's. and Knuckles are like buddies. Knuckles is mature and serious normally, but when he's with his friends he's relaxed and happy. He's 11 years old.Amy: she is kind and affectionate, and she's in love with , always trying to kiss or make her boyfriend. isn't in love with Amy, since prefers to be free and only goal is to save others, not to have a family, although we could say that only family is Tails. Amy is 8 years old, and she's so weak. Eggman: he's a fat, bald grown up human, but very clever. He wants to create the "Eggman Empire," with a robot, Metal Sonic, as his greatest creation and weapon. Eggman hates and wants to capture , but he always fails. He's very egocentric and selfish. can't take Eggman seriously; only does when 's truly in trouble. Metal Sonic: he's a robotic hedgehog created by Eggman, just as fast as , since he's exact robotic copy. He'll try to kill , no matter how difficult it is, because Metal wants to be "The Real Sonic."

Classic Sonic