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