What is the most VILLAINOUS accent?

From Dr Geoff Lindsey.

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Is it true that Hollywood likes its villains to be Brits or have British accents? And if so, why?

0:00 Introduction, Guardians of the Galaxy
1:04 British-accented villains
2:24 Colonial history
4:42 Brit-friendly Hollywood
5:07 Non-villainous accents
6:02 Received Pronunciation
9:56 Positive associations
11:04 Brits without a British accent
12:14 Brits as foreigners
12:59 My wrong prediction

Palpatine by William Tung, Creative Commons Attribution-Share Alike 2.0 Generic license https://commons.wikimedia.org/wiki/File:Empeor_Palpatine._Star_Wars.jpg