Do you want to compare Sgt. Rock with X-23? Discover the powers, weakness & weapons of Sgt. Rock and X-23 from Sgt. Rock Biography and X-23 Biography. Find out all about Sgt. Rock and X-23.# Check out how is Sgt. Rock unique and distinct from X-23. Discover their love interest, sidekicks, family tree and the movies and games list in which Sgt. Rock and X-23 have appeared. Find out everything about them here!