|Make: Jaguar XJR-15|
|License Plate Number: HS1201|
|Occupation: Finn McMissile's Assistant|
|Hometown: London, England|
|Voiced by: Emily Mortimer|
Holley is a beautiful young British desk agent turned spy-in-training who is stationed in Tokyo. Well-educated and sharp, she knows every trick in the book (or rather, she relies on every trick in the spy manual). She is armed with all of the latest state-of-the-art spy equipment imaginable, from hidden cameras and concealed weapons to a telescoping utility arm and a holographic pop-up display. Holley is a highly motivated agent, but is fresh out of the academy, so her experience is based on lessons learned in school rather than real-life situations. When Finn McMissile requires Holley's technical expertise for his latest top-secret field operation, she finds herself pursuing a rendezvous with the most unlikely candidate -- Mater, an innocent tow truck caught up in the intrigue, who is mesmerized by the beauty of his newest best friend.