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