Mads Mikkelsen

“Well, Credence is this unspoiled, unpolished diamond, whose powers we probably never have seen before. It’s kind of uncontrollable, but if I want to get to Dumbledore, I need him – first of all, because of his power; secondly, because I have a special relationship with Dumbledore, in the sense that we can’t move against each other because of the blood troth. It’s a no-go zone; it can’t happen. So, both Dumbledore and Grindelwald need other people to do the dirty work when it comes to taking on the other.”

Source: Bearpost