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