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