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