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