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