Captain America: Civil War smashed the box office this year, so it's super relevant this Halloween. Captain America, Iron Man, Black Widow, The Hulk, and their friends (and enemies) make some of the best costumes of all time. Who doesn't want to dress up like Loki and rule over the universe for a night? Before you choose from the many pop culture options this year, take a look through the Avengers — plus the supporting characters and villains — to get some ideas!
18 Action-Packed Avengers Halloween Costumes
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