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