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