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