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