Do you want to compare X-23 with John Grey? Discover the powers, weakness & weapons of X-23 and John Grey from X-23 Biography and John Grey Biography. Find out all about X-23 and John Grey.# Check out how is X-23 unique and distinct from John Grey. Discover their love interest, sidekicks, family tree and the movies and games list in which X-23 and John Grey have appeared. Find out everything about them here!