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