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