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