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