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