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