Thread:LucidPigeons/@comment-366087-20160325111005/@comment-366087-20160325134932

GMM, no one—at least not I—have ever said Light Yagami was not a villain. Certainly if anything he is a clear case of "absolute power corrupting absolutely" and his initial "good intentions" that of Heroes turned to the Dark Side.

William Foster is another character which started out as a sympathetic protagonist yet his story chronicles his journey into villainy. As he said at the end, "I'm the villain? When did I become the villain?"

Point is, the setting and story reveals them to be villains. Even if only the audience is aware because their true selves are hidden from other characters.

Creators are the ones who know their characters best.