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