Caroline Krafft is a student at Marymount Prep. She represents her school in math competitions. Eventually, she and her team lose the game against the North Shore High School's Mathletes on the tie-breaker question, which Cady Heron surprisingly gets right.
She looked quite disappointed after their defeat, and even began to cry in the background.
Being mostly recognized by her somewhat bad looks, Caroline has a messy shoulder-length hair and thick eyebrows. She also has a small moustache, red lipstick covering both her mouth and teeth, and wearing dorky glasses.