Sebastian Debeste

Personality
Sebastian was obsessed with being better than everyone else in the things he did. Even mentioning the word "first" was liable to make him want to do whatever was being talked about before anyone else, a fact that was sometimes taken advantage of by others. This rash tendency would also cause him to indict people without any real basis. While he was often very arrogant and condescending, as he considered himself the best in all things, Sebastian would break into tears rather easily when proven wrong. He also had few qualms with taking credit for the hard work of others, claiming to have found various pieces of evidence when police officers had found them on their own.

As an investigator, Sebastian was not very competent. His logic was full of holes and frequently made no sense, and he would sometimes present incorrect evidence (or even forget the name of said evidence) and not even realize it until corrected by Courtney. Additionally, he would frequently lag behind everyone else in what was happening in a case (or even a conversation) and would often use the wrong word in a sentence. This meant that it was often left to Courtney to gently push Sebastian in the correct direction or to combat Edgeworth's logic on her own.

Sebastian had a very childish and naive view of what it meant to be a prosecutor; he believed that his purpose as a prosecutor was to defeat his rivals. Much of this attitude is attributable to his father, whom he admired and whose approval he sought. As Sebastian's "achievements" stemmed from his father's influence rather than his own merit, he was ill-prepared for the realities of criminal investigation. In a bitter irony, the first time he actually found the truth before anyone else was when he realized that his own father was a criminal, a discovery from which he could derive no satisfaction.

Other people tended to show Sebastian little respect, if they acknowledged him at all. Although Edgeworth and Courtney usually employed some throat-clearing before ignoring Sebastian, Franziska von Karma would instead whip him. Even Larry Butz referred to him as an idiot, which is quite the achievement considering Butz's own reputation. However, the person who was the most flagrantly dismissive of Sebastian was his own father. Blaise frequently called him an idiot, openly lamented having such a foolish son, and later showed great relish in telling Sebastian the truth about his grades and awards.

After his father's arrest, Sebastian felt betrayed by everyone, becoming far timider and more insecure. However, Edgeworth lent him a helping hand and gave him the resolve to face his father, the one who had truly betrayed him. He learned to rely on himself rather than to try to gain approval from others, and though he still lacked confidence, he became a far more competent thinker than he was before. Despite everything, he did not hate his father, but maturely acknowledged that Blaise helped shape who he was.