Rouxls is very opportunistic and egoistical, always striving to improve his own standing by becoming second in command to a powerful ruler. Despite this, he has no strong convictions and tends to show signs of hypocrisy in some cases to improve his image, displayed by his decision to change sides by being beaten in battle after being loyal to King. He claims to be the Duke of Puzzles, but is an incompetent puzzle maker—all of his puzzles are very simple block pushing challenges. Rouxls tends to irritate other characters, who describe him as weird and unbearable. He has a habit of inserting himself in other people's plans when he is unwelcome, and is described as someone who "will appear even if unhired". His accent and complicated wording also tend to be confusing and grating to others. Despite this, Rouxls is often able to convince some Darkners to aid him or fight for him, though they usually abandon him after growing tired of him. Rouxls Kaard attempts to use Early Modern English speech patterns, presumably to appear educated, but it is highly inaccurate. Most commonly, Rouxls replaces most instances of "you" with "thou", but rarely conjugates the verb for agreement. He also tends to wedge himself into already-established relationships, implying that he is open to polyamory and bisexual.