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