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 and has a black nose. 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

Tails is an anthropomorphic fox cub with two tails. He possesses mostly amber fur with white countershading around his muzzle with cheek tufts, belly and the tips of his tails. He also has large triangular ears with white canals on top of his head, a small black nose and three locks of hair on his forehead. For attire, he wears cuffed white gloves, white socks and red shoes with white tips. His modern design gives him taller proportions, a more rectangular torso, blue eyes, and consistently amber fur. Tail’s personality: Brilliant but Humble. Loyal Sidekick. Gentle and Kind. Growing Courage.

Amy is a pink-furred anthropomorphic hedgehog with bright green eyes and peach skin covering her muzzle, inner ears and arms. She has a small black nose, triangular ears on top of her head, and no back spines. She has two medium-length eyelashes on each side of her eyes. She also has three spikes for bangs on her head. Amy's "Modern" design gives her a more headed twist with no back spines. Additionally, her head quills point downwards, somewhat resembling a bob cut. For attire, she now sports a red sleeveless and backless dress with two white trims and a white petticoat underneath, tall red boots with a white stripe down the center, white cuffs and gray soles with chunky heels, a red hairband, and white wrist-length gloves with gold bracelets. Amy’s personality: Hopeless Romantic. Fiercely Compassionate. Explosive Temper. Highly Independent. Organized and Resourceful.