Caitlin has light brown skin and short brown hair. She wears a lilac coat with a fluffy, light pink collar, turquoise glittery leggings tucked into purple furry boots and her round-edged wings are lilac tinted.
Symbol: Lilac paw prints.
Magic animal: Crystal the Ice Bear cub.
Job: Teaching ice bear cubs to spread courage all over the world.
She carries Crystal, the ice bear cub, on the front cover.
Her Swedish name is Isabelle.
Caitlin is named after a friend of the book's author, Sue Mongredien. In the Special Thanks section, the book is dedicated to "Holly Caitlin Powell".