Don Rockhood is a young boy with cerulean-blue eyes and spiky brown hair. He wears a white shirt under another blue shirt with a white oval with yellow borders and a yellow "d" in the chest and red line on the left arm. He also wears grey pants and belt, a red overcoat, red and white goggles with blue tenses, and black and white trainers.
After returning to the Human World, Don starts wearing a blue T-shirt hidden under a gold-trimmed long sleeved overcoat and darker colored 'shoulder pads' on his shoulders. He also wears blue jeans, a black belt, black socks, blue wristbands on his hands, and red shoes.