Jovian Grey is extremely competitive and strives to become the best at every task he is given. The benefit of this cutthroat approach to life and work is that he will always give 100%, pushing himself to his physical or mental limits to overcome any task. However, Jovian Grey’s overzealous ambition makes him insufferable to all but the most patient of companions, making it difficult to make friends while he either proves successful or utterly fails at being the best.

Despite whatever all his other characteristics may convey, Jovian Grey retains the air of a person that is confident, if not arrogant. Minor (and often, major) things in his body language - his walk, his stance, his expressions - reveal these feelings. At times, it seems he borders upon narcissism, especially judging from how much he enjoys his own company.

All who gain power are afraid to lose it, and Jovian Grey is no exception. Some use their power for good, some for evil; Jovian Grey, however, knows that these are just points of view. He is on a quest for greater power, and uses all his skills and abilities to ensure his supremacy, regardless of the consequences.

Jovian Grey has a tendency to get addicted to things, even if those things aren't addictive.

Jovian Grey 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 Jovian Grey. 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.

Without the gift of the Force, Jovian Grey has trained rigorously with a wide range of melee weaponry and technology to better handle opponents that are able to harness the mythical power. Jovian Grey has been conditioned to fight against foes that are Force-sensitive and are able to compensate against fighting an adversary wielding something as deadly as a lightsaber. While this adaptive combat training makes him lethal in close quarters combat against any kind of threat, they are still at the mercy of a long ranged fighter, assailant or Force user that prefers to attack the mind instead of the body.