Do you want to compare Callisto with X-23? Discover the powers, weakness & weapons of Callisto and X-23 from Callisto Biography and X-23 Biography. Find out all about Callisto and X-23.# Check out how is Callisto unique and distinct from X-23. Discover their love interest, sidekicks, family tree and the movies and games list in which Callisto and X-23 have appeared. Find out everything about them here!