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