Metallikats

The Metallikats were a pair of villains that appeared in the cartoon series "SWAT Kats". Originally named Mac and Molly Mange the Metallikats drowned when they were trying to escape from Alkatraz prison but their bodies were discovered by Professor Hackle's robotic servants and their minds were transfered into robotic bodies. The pair proceeded to become even more dangerous criminals, killing Katscratch before turning their attention to Mayor Manx - who they had a grudge against for denying their parole (though in reality it was Callie who denied the parole). They have also allied with Dark Kat, Dr. Viper and The Pastmaster during the course of the series.