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