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