Cavin is presented as a page to Sir Tuxford of Dunwyn. His only known family is a grandfather, Sir Gawain. Cavin is one of the few people to know of the Gummi Bears' existence, and becomes an ally to them. He is shown to be best friends with Cubbi, as they both share dreams of becoming knights. He later becomes friends with Princess Calla, with each harboring mutual feelings for each other.