The Creeper (DC Universe)
"Journalist Jack Ryder dug relentlessly for scandals to expose. Investigating a story, Jack met Dr. Vincent Yatz, whose invented nano-cells were able to heal any would and fight off disease. Under attack by mobsters, Yatz injected his only working samples into Ryder, who transformed into a yellow-skinned, furry-cloaked madman. Since then, the criminals of Gotham City have learned to ""Beware The Creeper.""
Includes the right arm of Bane."