Sheriff Mardin is an alien super-hero known as Green Lantern and a member of the Green Lantern Corps. The Guardians of the Universe gave her a power ring fueled by willpower to protect Space Sector 1253. Her home planet is Nyberg, where she became a law enforcement officer after her husband was killed by criminals. Sheriff Mardin was created by Mike Baron and Chaz Truog, first appearing in Green Lantern Corps Quarterly #6. (1993)

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