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