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