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Jeremiah Arkham is a prominent psychologist and the head administrator at Arkham Asylum. Despite his professional success, he is mentally unstable and has cracked under the pressure of his job several times. During Battle for the Cowl he became a super-villain using the alias Black Mask, taking the name of a deceased criminal. Jeremiah Arkham was created by Alan Grant and Norm Breyfogle, first appearing in Batman: Shadow of the Bat #1. (1992)

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