Iron is one of the Metal Men created by Doctor Will Magnus. Like the rest of the Metal Men, he is powered by a "responsometer", a nuclear powered microscopic activator. Not only does this device animate his body, but it endows him with a distinct and decidedly human intelligence and personality.
Iron in the strongman of the team. Good natured and friendly, he is the group's powerhouse, able to be shaped into an infinite variety of objects in order to assist the team in their missions. He has shown a vast knowledge of old time radio and tv shows that he compares those around him to.