The Leader is in a very strange place in the Hulk mythos. Redditor C0SMIC_PLAGU3 laments the lack of The Leader in the MCU on this post
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The Leader
Mad-Man was no mere mindless monster since he was actually Bruce Banner's peer and classmate
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Mad Man
The Ringmaster is one of the most unorthodox villains in the Hulk’s gallery
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Ringmaster
Mister Hyde is a fantastic bruiser with a rich history that connects him to the Hulk, making him Hulk’s oldest villain, both figuratively and literally
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Mister Hyde
Bi-Beast is an enormous android with two heads that was created by an Avian race of Inhumans
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Bi Beast
Disney+'sWerewolf by Night is introducing the concept of cursed furry monsters
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Wendigo
The U-Foes are a team dedicated to taking down the Hulk with a fascinating origin story
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The U-Foe
In the current age of nostalgia bait, Xemnu would be the perfect villain to step foot into the MCU
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Xemnu
With the Hulk’s self-hatred, it was only a matter of time before he literally fought himself
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Maestro
Many comic book fans have pointed out that the Hulk’s biggest villain was never any external