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