All the best bad guys are British. It’s such an established fact, it’s now the basis of a car advert. In American media, both film and TV, when they need a villain who’s still charismatic and morally ambiguous, they tend to head across the pond. It might just be a national fascination with Received Pronunciation. Or maybe it’s because Brits were once the colonial powers, leaving a lingering mistrust of posh British people in the collective consciousness.