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