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