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