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