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