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