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