Lock-Up is a law enforcement-obsessed super-villain and an antagonist to Batman. Beginning his career as head of security at Arkham Asylum, his specialty is developing imprisonment and incarceration systems. During No Man's Land, he was deputized by Batman to hold captured villains in Blackgate Penitentiary. He has been a member of the Secret Society of Super-Villains. Lock-Up was created by Paul Dini, originally appearing in the Batman: The Animated Series episode "Lock-Up." (1994) His first published appearance in the mainstream DC Universe was written by Chuck Dixon in Robin (Volume 2) #24. (1996)

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