3. More Ultrons
Perhaps Ultron's accomplices will be more versions of himself. In this year's "Age of Ultron" comic book limited series, the powerful robot created hundreds of individual robot bodies designed to look exactly like him to carry out his dirty work. Like the Phalanx, they would represent a disposable set of bad guys just to give the Avengers something to hit and provide audiences with a cool visual spectacle. Each individual Ultron could possess superhuman strength and durability and have the ability to project energy blasts, which would make them a frightening prospect for the citizens of Earth to face but a dispensable villain for the likes of Hulk, Thor and Iron Man to plough through with ease.