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