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