In The Lost Hero, a photo shows a 15-year-old Luke - a sandy blonde haired boy with a mischievous smile. He wore a ragged makeshift leather armor over his T-shirt.

Luke is described as a tall, college-aged young man with an athletic, muscular build. He had short-cropped sandy blonde hair, blue eyes, a sharp nose, and the sneaky look like all Hermes demigod children. Many girls found him particularly attractive, even the Empousa Kelli and Grover's girlfriend, Juniper (who had confessed that the 