Hiro is a calm and well-mannered anthropomorphic brown cat with blue eyes, though sometimes a bit energetic with a hunger for adventure. Similar to Chris Thorndyke, he wears a black long-sleeved shirt with a light blue stripe on each side under a red t-shirt with white sleeves and yellow details, a belt hanging off the edge of his jeans with gray stripes, white socks, and blue and yellow stylish shoes with gray soles. Has zero clue about who Sonic is, but he heard about him.