Sonic is a blue, 15 year old anthropomorphic hedgehog with skin-colored arms, muzzle and belly. He wears white gloves and red shoes with white straps on them. He has emerald green eyes and is best friends with Tails and Knuckles. Sonic is usually very cocky and confident, known for his super speed, but he also cares very deeply for his friends. He can’t swim and loves chili dogs.

Tails is a young, 8 year old anthropomorphic fox with amber fur and two tails with white tail tips. He has a white furry belly and blue eyes. Tails is know for his intelligence and expert piloting skills. He is Sonic’s best friend and loves mints.

Knuckles is a red, 16 year old anthropomorphic echidna with white boxing gloves with 2 spikes on each glove and red shoes with yellow stripes on them and green socks. He is known for his strength and passion for guarding the master emerald. He is arguably the strongest of the group, having punched Sonic out of his super form before. And he is also an expert digger

Dr. Eggman is depicted as somewhat taller and burlier. His arms and legs have become long and almost disproportionately thin, while his mustache has become more unkempt. For attire, he retains his signature glasses and gloves but incorporates the "Egg Goggles" which sit on his bald head, although he very rarely uses them. He now dons a red coat adorned with four ingot-like golden buttons on each side of the chest, each accompanied by white straps running to additional identical buttons on the back. The coat features silver linings down the back, arms, and front, yellow cuffs, and two extensions on the front with large silver buttons. Additionally, Dr. Eggman wears black pants with matching boots, which have circular plates on both sides of the ankles and three square ones extending up the shin. Described as the world's vilest person and worst screw-up, Dr. Eggman is an immoral mad scientist who only thinks about doing bad things. He always aspires to conquer the world to create what he deems a utopia, dubbed "Eggmanland". This gives him ridiculous delusions of grandeur and the psychotic belief that the world's problems will be solved if he rules it despite being far from the case.