Explain how Ariel and Caliban serve as character foils for each other. Be sure to consider their physical appearance and their roles as servants to Prospero. In the world of The Tempest , Ariel, the airy spirit, and Caliban, the earthy monster, can be described as character foils. Unlike and contrasted as they are, they have some traits in common. They both have an aversion to labor and a longing for liberty. Also, they have a primitive sense of humor, a fondness for tricks and pranks, and a spontaneous and unsophisticated love of nature. Furthermore, deeper inside them, one has a fear of a higher power and the other a craving for affection and approbation. Thus, the contrast