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