#8: Ultron
How deadly is he? He singlehandedly slaughtered the inhabitants of the fictional European nation of Slorernia, before enslaving the alien robot race the Phalanx and taking over countless planets as a result, for his own nefarious ends. Who’s responsible? Hank Pym (the superhero known as Ant Man, Giant Man, Goliath, Yellowjacket and, currently, the Wasp)…