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