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