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