Name: Sonic Gender: Male Appearance: A blue hedgehog. Has long blue quills, green eyes, and wears red sneakers. Personality: Free-spirited, active, and loves adventure. He hates injustice and is a brave, righteous character who doesn't hesitate to help friends in danger. He can be somewhat impatient and mischievous. Name: Tails Gender: Male Appearance: A yellow fox with two tails. Personality: Kind, smart, and diligent. He deeply admires and follows Sonic. He is the technical specialist who excels at handling machines and airplanes. Name: Knuckles Gender: Male Appearance: A red echidna. Features white gloves with spiked knuckles. Personality: Strong, honest, and loyal. While he competes with Sonic, they are actually close friends. He is a bit hot-tempered and simple-minded, but he's the type to fight for his friends.

Name: Shadow Gender: Male Appearance: Features black and red quills, red eyes, and black and red hover shoes. Personality: Serious, cold, and man of few words. He values his own goals and beliefs and doesn't easily trust others. However, he has a strong sense of responsibility and loyalty, never abandoning his comrades. Name: Rouge Gender: Female Appearance: A white bat woman. Features a black body with large wings and purple-themed attire. Personality: Confident, clever, and slightly sly. She is a treasure hunter who loves jewels while also acting as a government agent. She performs missions alongside Shadow. Name: Omega Appearance: A massive red and black combat robot. Equipped with powerful weapons on both arms. Personality: Violent and loves combat. He harbors resentment for being sealed away by Eggman and seeks to destroy Eggman's robots for revenge. He acts together with Shadow and Rouge.

Name: Silver Gender: Male Appearance: A silver-furred hedgehog. Features unique upward-pointing silver quills and cyan eyes. Ability: Uses psychokinesis (telekinesis) to levitate and throw objects or enemies. Personality: Has a strong sense of justice and is willing to take risks to save the future. He is kind and caring, but in Sonic 06, he is naive enough to be deceived by Mephiles' lies and can be somewhat hasty. Name: Blaze Gender: Female Appearance: A purple-furred cat. Features yellow eyes, white fur on her chest, and purple attire. Ability: Has the ability to control flames. Personality: Calm, cool-headed, and has a strong sense of responsibility. She doesn't show her emotions easily but possesses passionate feelings deep inside. She plays the role of a calm supporter for Silver.

Gender: Male Appearance: Initially appears as a black liquid or smoke-like form. Later takes on a black body very similar to Shadow, featuring bluish-gray stripes and green eyes. Notably, he has no mouth. Personality: Extremely calm, intelligent, and cunning. He speaks politely and calmly on the surface, but he is a villainous mastermind skilled at deceiving and manipulating others. He tricks Silver into attacking Sonic by lying that Sonic is the one who destroys the future. He also tries to persuade Shadow to join him, but Shadow refuses. #Villain

Gender: Male Appearance: In Sonic 06, he is designed with a slightly more realistic human physique than in previous works. Features a large mustache, a round face, and red and black clothing. Personality: A genius scientist with ambitions to rule the world. He kidnaps Elise to use the power she possesses for his own goals. However, in the latter half of Sonic 06, he occasionally cooperates with Sonic's group depending on the situation.

Gender: Female Appearance: A human woman with blonde hair, the Princess of the Kingdom of Soleanna. She wears a dress and has an elegant aura. Personality: Responsible, gentle, and considerate of others. Though she lost her father at a young age, she tries to suppress her emotions for the sake of the kingdom. She especially values the promise she made to her father never to cry.

Gender: Female Appearance: A pink hedgehog. Wears a short pink skirt and red boots, and uses a large Piko Piko Hammer. Personality: Bright, cheerful, and brave. She especially likes Sonic and follows him around proactively.