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