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