Metamorpho is an associate of Batman and a member of his team.
Although still humanoid, Metamorpho's appearance is very different to that of a normal human; with chalk-white skin, a complete lack of both head and facial hair, and the absence of a nose. Metamorpho also doesn't appear to have toes (although this could be a conscious act of shape-shifting). Aside from these differences, Metamorpho has the appearance of a tall, lean-muscled adult man. When he became injured during battle his body adopted a more monstrous appearance; with a hunched stature, and horn-like protrusions and mouth-like openings present on his back and shoulders.