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