Powers: Lady Viper possessed superhuman strength. She could also induce hypnotic compulsions in her victims.
Weaknesses: The longer Charlene remained in the form of Lady Viper, the stronger her reptilian characteristics became.
Bio: Charlene was a sideshow performer who exploited her lifelong fascination with reptiles to make a living. She happened across a strange statue, of what appeared to be a woman with a serpent's tail. One night, as the moonlight filtered through the eyes of the statue, it changed her into the embodiment of the character. She took the name Lady Viper and embarked on a life of crime. This brought her into conflict with Batgirl. She eventually remained too long in her Lady Serpent form and transformed wholly into a reptile. Batgirl retired her to a zoo.