Shadow the Hedgehog is Sonic's dark, edgy rival, an "Ultimate Life Form" created by Dr. Gerald Robotnik, known for his black fur, red eyes, superhuman speed, and powerful Chaos abilities like teleportation (Chaos Control) and energy projectiles (Chaos Spear). Initially driven by revenge for his friend Maria's death, he's a complex anti-hero who ultimately seeks to honor her wish to protect humanity, often working alone with Team Dark. Appearance: A black hedgehog with red eyes, white fur on his chest, and distinctive red stripes on his quills, arms, and legs. Attire: Wears white gloves with black cuffs, Air Shoes for gliding, and Inhibitor Rings on his wrists and ankles. Personality: Serious, brooding, often aloof, and fiercely independent, but deeply loyal to Maria's memory.

Knuckles is a red, anthropomorphic echidna from Sonic the Hedgehog, known as the guardian of Angel Island and the Master Emerald, characterized by his powerful spiked knuckles, dreadlock-like spines, and a strong, sometimes gullible, personality that makes him a rival and ally to Sonic, dedicated to protecting his charge with immense strength and climbing/digging skills. Knuckles the Echidna is generally recognized as being 16 years old

Miles "Tails" Prower is a, fox from the Sonic the Hedgehog franchise, recognizable by his two, twin tails, orange-yellow fur, and white muzzle and tail tips. As a genius mechanic and Sonic's loyal best friend, he frequently uses his twin tails to fly and invent gadgets to help fight Dr. Eggman.

Sonic the Hedgehog is a blue, anthropomorphic hedgehog known for his supersonic speed, cool attitude, and adventurous spirit, characterized by his spiky quills, green eyes, and iconic red and white sneakers, who lives to run and protect the world from his nemesis, Dr. Eggman, embodying freedom, loyalty, and a love for adventure. Sonic is around 3'3" 16-17 years old,