Nobilus has a sick sense of humor, viewing the world through dark colored glass. He has a biting sense of black humor, often laughing at things that most people would find reprehensible or down right soul crushing. As a result, those that are not used to his brand of humor often find Nobilus downright unbearable or overly morbid. At the same time, his cynicism can be useful for seeing through the optimistic altruism of those he encounters.

Nobilus doesn't like to work in groups or teams and feels most comfortable on his own. Nobilus sticks to himself, sets his own pace, and doesn't share feelings or emotions with others. While the Lone Wolf can get things done quietly and efficiently, he tends to be emotionally cut off and has problems relating to his comrades.

Nobilus is not afraid to exploit any advantage or position of power he has when dealing with others, and relies on a combination of fear, intimidation, manipulation and shows of strength to convince others to compromise and lose. Nobilus can be quite callous in his dealings with others, and never gives up his power. This has earned Nobilus with the reputation of a “bully” and can often make negotiations difficult before they even begin.

While generally laid back and more than happy to offer a quip of sarcasm, Nobilus's entire demeanor changes once combat begins. He becomes focused and quiet, with his smile replaced with a look of grim determination.

Nobilus wears out his opponents through use of the Force, agility, and evasion. Once he has sufficiently tired his foes through the Force, physical, or mental assault, he quickly tries to find a means of cleanly and swiftly dispatching them - usually resulting in a somewhat risky all-or-nothing attempt at a deathblow.

Nobilus seems to get his thrills, perhaps sadistic ones at that, from toying with his opponents. Some are content with simply striking down or injuring their opponent, but that is not enough for Nobilus. No, he wishes to see his enemy descend into madness or kneel before him as a blathering mess; or even better, as a fresh new servant with a muddled mind. The Puppeteer usually forsakes outright hurting and maiming his opponent and focuses on illusions, mind tricks, and other wicked means of destroying a person.