Clare has short chestnut colored hair held by a yellow headband, freckles, and buckteeth. She wears a yellow t-shirt, blue jeans, and white sneakers.
Clare is a young girl who seems to be a dog lover. She is also impatient, as seen when she found Watterson and continuously told him to get home with her. She is also well mannered, which was seen when she thanked the Loud family for taking care of her dog.