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