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