Character Analysis
Even though Juliet is around for a lot of the story, we're also calling her a minor character because she doesn't do much except get rescued by Butler and yelled at by Mrs. Fowl. She's a typical teenage girl apart from her interest in televised wrestling (because "she was, after all, a Butler" 2.9) and is apparently pretty popular with the "local louts" (4.11). Her most important feature in this book is her status as an "innocent" (9.222)—both in her relationship with Butler and her acquaintance with Holly.
She's the real reason Butler has the motivation to take on the troll, and she's the reason Holly tries to get Root to stop the bio-bomb, even though she has just been kidnapped and everything. So Juliet's innocent, pretty inactive, but most definitely important to the plot in this book.