Who are the characters in the Marvel Universe Wiki background? - Science Fiction & Fantasy Stack Exchange

I was browsing the Marvel Universe wiki and liked the cool background but do not know all the characters are. I can only name some of them: Spider-man, Captain America, Thor, Black Widow, Iron Man

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Who are the Marvel characters in the Clementoni 39411 - Impossible Puzzle - Marvel - 1000 Pieces Jigsaw? - Science Fiction & Fantasy Stack Exchange

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