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