Xenin

Xenin was a powerful warrior and member of the Dark Legion. Almost his entire body had been replaced with cybernetic enhancements which we designed to make him a superior fighter to Knuckles the Echidna in every way. During the Dark Legion's attempt to take over the Echidna High Council, Xenin captured General Von Stryker and imprisoned him as well as Knuckles and Julie-Su. (KtE: #23)

Almost two years later, Xenin became a victim of the Egg Grape Chambers, loosing his life. (StH: #141)