Rita Farr as Negative Girl (Earth-0) - DC Comics

Rita Farr was a famous actress until she was exposed to a strange gas that broke down her cellular structure. She was later saved by Niles Caulder, and joined his Doom Patrol.

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Earth Goth, DC Database

Negative Girl (disambiguation), DC Database

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Rita Farr (Prime Earth)

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Rita Farr (Earth-0) - DC Comics

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Rita Farr, Earth-27 Wiki