Sukuna is a tall and muscular man with uniquely styled black hair with long spikes that jut out in every direction. His body is also covered in tattoos. The tattoos are mostly black lines on his wrists, upper arms, upper body, abdomen, and face. Sukuna is selfish, cold-hearted, immoral, and exceptionally sadistic. Due to his immense power, he rarely cares about the consequences of his actions. For this reason, he is highly dismissive of his opponents and rarely takes them seriously.