The Doppelganger, also called the Spider-Doppelganger, is a fictional character and supervillain appearing in American comic books published by Marvel Comics. It is a near-mindless duplicate of Spider-Man possessing the mind of a vicious animal and acts as a servant to other villains rather than with a full will of its own. Along with Peter Parker's agility, speed, and power to cling to walls, the Spider-Doppelganger possesses greater superhuman strength, six arms, talons, and organic web-spinnerets on each forearm that fire "razor-sharp" webbing.