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