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