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