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