Sneak Peek: Meet PEOPLE's Ones to Watch 2014

Get a first look at some of the 40 up-and-coming stars we're celebrating this year – before they hit it really big

KI HONG LEE, 28

After starring in The Maze Runner, adapted from the hit YA novel, the actor splurged on … PJs? "In Korean culture," he explains, "with the first paycheck that you get, you buy your parents pajamas."