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