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