Headmaster is a name used by several different characters in the DC Universe. The original was an enemy to Batman who ran the Academy of Crime. Thaddeus Hoskins later used the name while fighting Martian Manhunter. Blue Beetle fought another Headmaster who worked for the crimelord La Dama. In the Dakotaverse, Headmaster is a Shadow Cabinet member who leads the Star Chamber. There have also been several characters named Headmistress.
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