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