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