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