Four's appearance can be described as tall, with a fit and athletic build. He has short dark hair, piercing blue eyes, and a strong jawline, giving him an intense and brooding look.

Four is a dauntless. They strive to become courageous and durable. The Dauntless are those who guard The Fence, making sure no one gets in or out, and are the best soldiers. The Dauntless colour is black. They wear tight-fitting, dark or black clothing that aids in their lifestyle of battle and training.