Vampira Hyde

Vampira Hyde is the main villainess from "Hyde and Sneak," an Inspector Willoughby cartoon released on July 24, 1962. She is an evil international jewel thief and a master of disguise. Vampira was hunted in London by Inspector Willoughby, who encountered the villainess at a tea shop, where she was serving him. Willoughby recognizes her, but Vampira tricks him by taking one of her "Jekyll and Hyde" pills, which turns her into a kindly old lady.

As the cartoon progresses, the evil Vampira commits her string of jewel robberies, and is constantly caught in one of Willoughby's traps. Each time she's caught, Vampira shifts into her elderly lady form, causing Willoughby to believe that he has arrested the wrong lady and dropping her off at the tea shop.

Eventually, Willoughby catches on to Vampira's ruse and sets a trap for her that involved having her steal a jewel that was worth $1 million. Vampira steals the large jewel and cracks it, revealing that Willoughby was inside. The villainess is finally arrested and has her pills confiscated by Willoughby.

Trivia

 * Vampira Hyde was voiced by the late Grace Stafford.