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