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