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