I re-watched the last two episodes of Lost last night, prior to the new series coming back in February, and I was very struck by the way in which the 'non-Locke' character (viewers will understand) incarnates evil. What I mean is that, in prompting Ben to kill Jacob, he feeds Ben's own sense of victimhood. Evil is the whisper prompting someone to believe in nothing. "What about you?"
Anyone wanting a rapid memory-refresh (that manages not to mention my favourite character Mr Echo):