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