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