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