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