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