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