Adonis is a tan Great Dane with a brown snout, brown pointed ears, a brown tail and a brown spot on his back. His sclera is white and pupils are Barcelona beige but his eyes can turn blue or red when his robotic mode is turned on. He is sometimes depicted with a yellow fur color with brown paws too. He can also be seen with his paws being a lighter shade of tan or yellow. He wears a red collar with a silver number one on it. His appearance can change depending on which one of his robotic forms.