Always have your characters listen to the mysterious cloaked figure in the story, because that person is an old relative that your -Past Not Applicable- hero has lost over time along with his memories and who must now watch him from afar.
Since there's like...no way that the villain would dress up in a disguise and guide your heroes in the wrong direction, or (heaven forbid) a trap.
Speaking of which, your villain is either insanely smart or incredibly stupid. Either way he makes overly obvious errors in his plans that even a two year-old could figure out how to undo. There's no way they could beat the hero's obviously superior knowledge of physics and such, even though they're NOT ONLY from a backwards town in the middle of the normally medieval timeline, but they failed pretty much every bit -single-room- schooling they were provided.
Oh, and if your villain is not lustful over the hero, they must be related. Must be. Because the line 'I am your father' never gets old, at ALL. People love repeatedly used pop culture references, of course.