Lexi Thompson appears to be a girl in her early to mid-20s. There's a light in her eyes that makes her look almost alive, and an air of excitable innocence to her demeanor that would be endearing if she was among mortals. Among vampires, however, she may seem naive or even air-headed at times, sometimes earning scorn from elders and more stuffy people. Those who know her even a little know that the innocent look hides a friendly, cooperative, outgoing nature  - and dangerous interest in high-risk antics.

Not quite gorgeous, not quite plain, Lexi's features are elegant and beautiful - certainly enough to compete even with many starlets and people on television. Her big blue eyes are framed by high cheeks, a petite, upturned nose, and gently curved pale lips. Lexi's look is always very expressive, every emotion coming so naturally to her that at times it seems almost exaggerated.

The rest of her body is slim and well-built, with a hint of strong musculature and a former life in athletics. She often wears stylish, modern clothes from various designer labels, both domestic and foreign, and she seems to change her wardrobe every few weeks. Perhaps the only other notable feature is her height.

Lexi stands at a height below chest level for most people. Just a hair above 5 feet tall, she often has to ask people above her to reach up and get things, or has to climb up a few steps. This is a sore spot for her but otherwise does not detract from her impressive physique.

She speaks with a Californian accent that has just a hint of a vague midwestern twang.