Will has short, black hair and wears dark-colored clothing. He's seen to wear a semi-long coat. 
His age is unknown, but it can be concluded that he is at least eighteen years old. This is because he recounts a story about his mother from when he was fifteen, and his mother had died three years ago. William is a shy and socially awkward boy. he does not have any friends and rarely attended school. He sometimes struggles with empathy and makes uncontrollable, inappropriate faces.