Some articles on marbleheads, marblehead:

List Of Underdog Characters - Main Villains - Other Villains - The Marbleheads
... Appearances The Marbleheads The Marbleheads are people made of marble ... Captain Marblehead (voiced by Allen Swift) is the dictator of their planet ... Captain Marblehead holds their most powerful weapon the Granite Gun that could turn anyone into solid stone and used it on Underdog but to Marblehead's shock he breaks free ...