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