 Nebulous's past is shown by brief flashbacks triggered by the word "clown" (or even words that sound like "Clown"; on one occasion a flashback was just triggered by the word "Cloud").Nebulous's scientific bent and serious demeanour are explained by Nebulous's parents who both forced him to become a circus clown at the expense of his scientific studies.Although his reputation has suffered greatly due to the destruction of the Isle of Wight, Nebulous has made several prominent discoveries in his career, such as a cure for blindness and a sandwich that cures cancer (Marmalade and cucumber, apparently), as well as continuing to defend Earth despite the poor funding available to him.