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