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