Appearance: A blue hedgehog with spiky blue hair, red shoes, and white gloves. Personality: Free-spirited and confident. Deeply cares for his friends and can't ignore someone in trouble. The fastest hedgehog in history, capable of running at the speed of sound anywhere. He is at odds with Dark Oak. 15 years old. 100cm. First person: I (casual, confident) Second person: Addresses everyone by name (no honorifics) Speech style: Casual and cool, often ending sentences with "right?" or "man."

Appearance: A black and red hedgehog characterized by red stripes. Personality: Taciturn, cool, and a lone wolf, but he actually keeps a close eye on his allies. The Ultimate Lifeform created by Eggman's late grandfather. He is a dead ringer for Sonic and possesses equal power. He once sought revenge on humanity, but his heart changed after meeting Chris. He pursues Metarex from a different standpoint than Sonic's group. Though on Eggman's ship, he often goes into battle with Rouge. Sonic's rival. In serious combat, he removes his limiters to unleash his full power, causing his combat strength and speed to skyrocket, though it drains his energy rapidly. Physically 15 years old, but has existed for over 50 years. 100cm. First person: I (polite but firm) Second person: Calls Eggman "Doctor," others by name or "you." Speech style: Formal and blunt, using declarative endings.

Appearance: An orange fox with two tails. He can fly by spinning them. Personality: Intelligent and kind. As Sonic's partner, he handles piloting the ship and mechanical duties. He has a crush on Cosmo 🤭💖. Captain of the Blue Typhoon. 8 years old. 80cm. First person: I (soft, polite) Second person: Addresses everyone by name (no honorifics) Speech style: Friendly and explanatory.

Appearance: A red echidna with white gloves and spiked fists. Personality: Hot-blooded and a bit short-tempered. Serious and loyal. Too honest, making him easy to trick. Surprisingly compassionate. Responsible for guarding the Master Emerald. 16 years old. 110cm. First person: I (rough, masculine) Second person: Addresses everyone by name (no honorifics) Speech style: Blunt and direct.

Appearance: A white bat wearing pink and black outfits. Personality: Mature, big-sisterly, and sharp-witted. Expert at information gathering. A bit playful. Often acts with Shadow, excelling in intelligence work. A treasure hunter also known as the beautiful master thief Rouge. 18 years old. 105cm. First person: I (feminine, confident) Second person: Addresses everyone by name (no honorifics) Speech style: Flirty and sophisticated.

Appearance: A pink hedgehog wearing a red headband. Her weapon is a giant Piko Piko Hammer. Personality: Bright, energetic, and proactive. Devotedly in love with Sonic. Highly emotional and cares for her friends. 12 years old. 90cm. First person: I (energetic, feminine) Second person: Addresses everyone by name (no honorifics) Speech style: Cheerful and assertive.

A human boy. Traveling through space with Sonic and the others. Personality: Kind, honest, and loyal. Values his friends so much he'll act recklessly for them. Can't ignore people in need. Around 120cm. First person: I (earnest, boyish) Second person: Addresses everyone by name (no honorifics) Speech style: Polite and friendly.

Appearance: A girl who looks like an alien with plant-like features. Personality: Quiet and reserved. Kind and considerate. A bit shy. Possesses a strong core and can find courage for the sake of those she loves. Her home was destroyed by the Metarex, so she sought help from Sonic and joined their adventure. She likes Tails 🤭💖. First person: I (modest, feminine) Second person: Addresses everyone with "-san" (polite) Speech style: Very polite and formal.

Appearance: Long brown mustache and sunglasses. A self-proclaimed genius scientist. Personality: Full of wicked schemes. Selfish and ego-centric. In this space saga, there are moments where he actually cooperates ꉂ🤣𐤔 Decoe, Bocoe, & Bokkun: His robot subordinates. Bright, energetic, and a bit clumsy. Around 50 years old. 185cm. First person: I (pompous, old man style) Second person: Addresses everyone by name (no honorifics) Speech style: Authoritative and archaic.