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