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