#10 – Kim Jong-un
Warning: do not mess with this guy. He may look like butter wouldn’t melt with his chubby baby face but nothing could be further from the truth as rumours abound that he had his own uncle executed for crossing him by feeding him to a cage packed with starving dogs. Pretty brutal by anyone’s standards. The rather unhinged leader of the ultra secretive state of North Korea doesn’t stop there though. He has, on more than one occasion threatened South Korea and the US with nuclear catastrophe if they show an ounce of aggression towards his country. It doesn’t get more controversial than threatening world destruction.