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