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