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