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