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