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