The Sun is very aggressive, psychotic and tends to have extreme mood swings. He can also be a bit abusive towards his planets, demanding them to obey his orders right away and aiming his solar flares at them. He also acts clingy and isn’t afraid to defy others opinions. However, he has shown to occasionally be kind and caring for his planets. He also knows how much Earth cares about his Earthlings and tried to stop him from heading towards him. He enjoys telling puns too.