Tons of MCU characters made their debuts in Captain America movies, and they have all had a major impact on the franchise.
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15 Marvel heroes who are DC copycats

Some Marvel Heroes, like Doctor Strange and Quicksilver, are a little too similar to their DC counterparts.
Marvel heroes have been replaced numerous times, and some of these occasions saw their own villains take their place.
A redemption arc looms on the horizon for these underutilized MCU characters with the upcoming end of the Multiverse Saga.