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