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