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