While Haro Zylrun will see a job through to its conclusion and put forward his best effort, it’s still just a job. Haro Zylrun's true loyalties lie to his friends, and through thick and thin,he will stand by them and die for them if needed. This loyalty is reserved for those who have earned Haro Zylrun's trust, putting him at odds with other Mercenaries that are only doing a job for the money. This also makes it harder for employers to trust his motives, often times creating extra competition and difficulty finding work. None of it matters to Haro Zylrun, though, because loyalty to his friends is not something credits can buy.

Haro Zylrun has a long memory and notices a lot, and if you were wondering if he remembers something, the answer is usually yes. On the flip side, though, Haro Zylrun tends to get angry relatively easily, and sometimes has difficulty keeping his cool during conversations, arguments, and debates about things that interest him, especially if the other person is wrong.

Despite an aversion for physical confrontation, Haro Zylrun has a quick-witted and sharp sense of humour, and never passes up the opportunity to make a quip or jibe about his situation, or to taunt his enemies. While some find Haro Zylrun to be funny and likeable, others do not always respond so warmly, and occasionally Haro Zylrun will get himself into more trouble than he thought when someone takes a joke the wrong way.

Haro Zylrun prefers to push the rules to the absolute limit. While he is unlikely to actually break rules or disobey orders, he toes the line between what is allowed and what isn't at every opportunity.

When it comes to a fight, some like to posture, some like to act tough, some like to dance around and go through all sorts of fancy footwork. Haro Zylrun? Haro Zylrun doesn't bother with exotic battle stances, intricate maneuvers, or super-secret tactics. Haro Zylrun, when cornered into a fight, prefers the ancient technique of a good kick to the nuts. And if that won't work, either because the enemy is a woman or has balls of steel, Haro Zylrun isn't beyond pulling a few more cheap tricks out of the bag. Granted, Haro Zylrun won't be winning any medals for nobility or any prestige for a unique fighting style or a superb maneuver, but Haro Zylrun will still be winning, the best and most dirty way he knows how.

Through a mixture of cocksure courage and arrogant swagger, Haro Zylrun will not back down from a challenge when called out, even if the wiser path is to walk away or let it go. Haro Zylrun's personality does tend to rub a lot of people the wrong way, which generally puts him into situations that escalate quickly to violence. While he may not be the one to always start a fight, he will always see it through to it’s conclusion. Some have tried to play a challenge off as idle banter, but when Haro Zylrun initiates or accepts a challenge, he does not hold back.