He-Man and the Masters of the Universe powers to defend Eternia from the evil forces of Skeletor. Skeletor's main goal is to conquer the mysterious fortress of Castle Grayskull, from which He-Man draws his powers. If successful, Skeletor would have enough power to rule all of Eternia and possibly the entire universe. The Mattel company released the original He-Man action figure in 1982; the franchise backstory was developed by the Filmation animation studio. On 1 December 1982, Michael Halperin wrote a "series bible". Some time after, both firms pitched the idea to the ABC network, who turned it down. The resulting series, "He-Man and the Masters of
He-Man These biographies suggested that several "He-Men" have come into existence – such as Vikor (based on an early concept design for the vintage He-Man), Oo-Larr (based on the jungle He-Man from the first minicomic), and Wun-Dar (based on the so-called "Wonder Bread" He-Man figure) – but Prince Adam was the only one who actually wielded the Power Sword and transformed into the true He-Man. In the Filmation series "He-Man and the Masters of the Universe" as well as in "", He-Man and Prince Adam were voiced by John Erwin. Erwin alternated between two distinct deliveries, though in the show's intro