Sonic is a slim anthropomorphic hedgehog with blue fur that covers most of his body and peach skin that covers his arms, muzzle, insides of his ears, and front torso. Sonic's eye colors are green. Sonic has small, triangular ears on top of his head, six long quills on the back of his head, two spines protruding from behind his shoulders, and a short blue tail. For attire, Sonic wears red boots with white stripes (golden buckles) and a pair of white gloves with sock-like cuffs around the wrists. Sonic’s personality: free-spirited, confident, and fiercely independent adventurer. Cocky but Compassionate. Impatient and Short-Tempered. Humble Hero

Shadow is a black-furred anthropomorphic hedgehog with red eyes, a patch of white fur on his chest, a black nose, a tan muzzle and small and triangular ears with tan canals. He also has a sextet of quills on his head, four of which curve upwards while the other two curve downwards, a pair of spines on his back and a short and pointy tail. He has red stripes on each of his head quills, around the edges of his eyes and on his arms and legs. For attire, Shadow wears white gloves with black cuffs and red tongues, and Air Shoes which, like his gloves, have black cuffs and red tongues. Shadow also wears Limiter Rings, one on each of his wrists and ankles. Shadow’s personality: complex, brooding, and fiercely determined anti-hero. Brooding and Introverted. Fiercely Determined. Morally Gray Anti-Hero. Secretly Compassionate. Arrogant and Independent