Stryker's Island Penitentiary
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Real Identity: Not Applicable
Powers/Skills: Not Applicable
Voiced By: Not Applicable
Stryker's Island Penitentiary is a prison facility located on an island off the coast of Metropolis dedicated to the worst of the criminal fringe. In modern times, it evolved to properly incarcerate supervillains. When captured, Atomic Skull was remanded to a special cell that siphoned his energy and added it to the city's power grid. However, Atomic Skull's powers continued to evolve and he escaped the penitentiary.