He-Man is a superhero and the main character of the sword and sorcery Masters of the Universe franchise, which includes a toy line, several animated television series, comic books and a feature film. He-Man is characterized by his superhuman strength and in most variations, is the alter ego of Prince Adam. He-Man and his friends attempt to defend the realm of Eternia and the secrets of Castle Grayskull from the evil forces of Skeletor.