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That's what villains do!
Headmaster Mind src

Headmaster Mind was an expert criminal who taught up-and-coming supervillains.

He took one class to the Metropolis Zoo and they were confronted by the Super Friends. They were able to subdue the heroes, but two of his students, Black Alice and Mind-Grabber Kid, had a change of heart and turned on their comrades, resulting in their arrest.[1]


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Justice League Villain

This character has been primarily an enemy of the Justice League, in any of its various incarnations. This template will categorize articles that include it into the category "Justice League Villains."