Sirius is known to be an easily annoyed character. Overall, he has a grumpy and irritable personality, but he is genuinely concerned about the well-being of others. He has a habit of snapping at people and taking things seriously. Sirius is a rather reserved person who absolutely hates going out, and prefers being alone. But despite his sirius demeanor, he is childish at heart. He seems to be interested in fashion and accessories, and his moon earrings are one of his favorites.