Briony - who usually goes by Bree - is on the slight side, at 5'1" and 106 pounds. Her fashion sense, though solid, tends toward clothes that are stylishly a little too big for her, giving her even more of a small, vulnerable appearance. She has very long blonde hair, dark blue eyes, and delicate features. She often wears a noticeable amount of makeup, especially lipstick. She's good-looking in a somewhat cutesy, doll-like sort of way, but her large, sometimes-staring eyes can contribute to her seeming a touch eerie or "off." She hails from America, so her accent is noticeable on a British college campus.

Bree did some modeling as a child, and appeared in a dud of a horror movie a couple of years ago, so it's possible that others might recognize her on sight. She's more well-known in an indirect sense, for being connected to the scandal involving her much more famous parents. She's the eldest love child of Adam Isherwood, the already-married scion of the wealthy and powerful Isherwood family, and the supermodel Elizabeth Wilkow. Their tabloid-fueling affair came to a particularly torrid end when Bree was 14, as both her parents were killed in a murder-suicide that's usually blamed on her very erratically-behaved mother. Bree was effectively forced into hiding from the paparazzi as a teen, bringing her overbearing stage-mother's career plans for her to a sudden end.