This cranium-themed villain wears a helmet with a large skull on it used to batter down walls. He uses the skull like a wrecking ball. He tried to batter down the wall of the 1st national Bank of Chincinnati. His body armor has a coin appearance with a "C" in the center of it.
The Copper Cranium is first seen using his large metal head attachment, attached to a spring, to break down the walls of the Bank. The Crimson Chin and Cleft the Boy Chin Wonder see this and realise they have to stop him.
The Chin flies over to the Copper Cranium and intercepts and holds onto the Cranium's giant metal head, forcing him to be pulled into it several times. The Chin then sends the Cranium to jail.
He later makes up a part of the Body of Evil mech formed out of various villans to defeat the CHin once and for all.