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