Knowing Vladek, that idea fits. Where does Vladek ultimately end up again in our timeline, have we planned yet?
The Guardian sounds like a neutral character who can benefit anyone who visits him. The Guardian is a mystic with special powers? Anyone this is what he looks like: http://vignette1.wikia.nocookie.net/lego/images/b/b8/Guardian_concept.jpg/revision/latest?cb=20111112233349