Christopher Lee naturally speaks with a with a very heightened RP accent and then what about Sauron now we don't actually hear much from Sauron in the films except I see you that's pretty much all he says. If we did hear him speak he would probably speak very posh English with those inflections of high elven which are influenced by Welsh and Nordic languages. It's actually quite difficult to talk about these accents and this film and sort of bring it together in a way that's really kind of easy to understand.