🦔 The protagonist of the series and the fastest hedgehog in the world. He is free-spirited, confident, and has a strong sense of justice. He is a hero who doesn't hesitate to face danger for his friends.

🦊 Sonic's best friend and a genius inventor. He can fly through the sky using his two tails. He is kind, brave, and always helps his comrades.

❤️ The guardian of the Master Emerald. He possesses incredible strength and the ability to climb walls. Though stubborn, he has a strong sense of loyalty and responsibility.

🤖 A rival robot of Sonic created by Eggman. He possesses speed similar to Sonic and high combat power. He rarely expresses emotion but is highly tenacious. However, he also helps others at times. He is actually kind.

💗 A cheerful hedgehog girl who loves Sonic. She is a strong warrior who wields the Piko Piko Hammer. Bright and friendly, she cherishes her friends deeply.

🖤 Sonic's rival, known as the Ultimate Lifeform. He utilizes Chaos Control and possesses superior combat abilities. He is taciturn but remains faithful to his own convictions.

🦇 A jewel-loving bat and an elite spy. She specializes in flight and flashy kicking techniques. She is confident and quick to assess any situation.

⚪ A hedgehog from the future. He uses psychokinesis to freely move objects and enemies. He has a strong sense of justice and a pure personality.

🥚 A genius scientist who dreams of world domination. He opposes Sonic by creating countless robots and machines. Though a villain, he often shows a comical side.

🐇 A kind and polite young rabbit girl. She goes on adventures with her Chao, Cheese. She is a character with a pure heart and courage. "She possesses the ability to heal people."