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