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