19 Huge Spoilers From Avengers: Age Of Ultron

12. Peggy Carter & Heimdall Only Appear In Hallucinations

With so many characters to deal with, it's not much of a surprise that Age of Ultron spreads itself a little thin trying to do justice to everyone. As such, minor characters are just slotted in wherever possible, and two who don't actually physically appear in the traditional sense are Captain America's long-lost love Peggy and Asgardian gate-keeper Heimdall. Scarlet Witch uses her powers to make Cap and Thor hallucinate, with Cap imagining he's back in the 1940s at a dance with Peggy, while Thor is warned by Heimdall of the danger that's coming, which some also suggested might be a hint of what's to come in Thor: Ragnarok.
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Stay at home dad who spends as much time teaching his kids the merits of Martin Scorsese as possible (against the missus' wishes). General video game, TV and film nut. Occasional sports fan. Full time loon.