Ultron, played by James Spader in the 2015 film Avengers: Age of Ultron, is a villainous AI system, who fought the Avengers using an army of robot avatars.
However, as some social media users have pointed out, Ultron was known to adopt a human persona in the Avengers Assemble animated series.
Some viewers have theorised that Hayward is simply an alter-ego, and is, in fact, a villain that Wanda is intimately familiar with: Ultron.
While Hayward’s intentions remain unclear, it’s hinted in episode six that he has his own nefarious plans for Wanda and Vision.