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