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