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