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