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