Do you want to compare Metallo with Proteus? Discover the powers, weakness & weapons of Metallo and Proteus from Metallo Biography and Proteus Biography. Find out all about Metallo and Proteus.# Check out how is Metallo unique and distinct from Proteus. Discover their love interest, sidekicks, family tree and the movies and games list in which Metallo and Proteus have appeared. Find out everything about them here!