Zachary believes that adherence to his word is important. Orders are meant to be followed, standards are meant to be upheld, words must be true and promises must be kept. The exact terms of what constitute "true words" and "kept promises" are where Zachary and others tend to differ. What would seem to others as a stark disregard for the rules often comes across as complete adherence to O'Maille, simply from another point of view they aren't seeing. His attitude toward the 'bending but not breaking' of rules can put him at odds with superiors and peers.

Zachary O'Maille always seems to underestimate the gravity of important situations or the difficulty of tasks by about a mile or ten.Zachary O'Maille is a bit of a slacker, never really thinking things all the way through - and it usually comes back to bite him in a wildly comedic way. However, he also tends to not be deterred from things that would often scare others away.

Zachary O'Maille is often confused and heavily saddened by the amount of idiocy that constantly surrounds him. It is often much easier for Zachary O'Maille to cope with people by ensuring he stays inebriated and dulling his senses. When unable to find alcohol for an extended period of time, Zachary O'Maille will devolve into a ravenous, hate-filled monster that is nigh impossible to be around. In other words, Zachary O'Maille is an addict.

Zachary has dealt with seemingly prophetic dreams since childhood. As his understanding and connection to the Force has grown, he has come to rely on them increasingly. As such he believes they must be investigated, even it means putting himself in danger to do so. Despite the dangers entailed, he believes the Force shows its will to him, having brought him where he is now and will show him where to go next. For this man, the future is already determined, he just needs to find his destiny.

Zachary O'Maille doesn't like to kill people; instead he chooses to injure his opponent until that person is unable to fight back or is otherwise incapacitated.

Through careful study and dedication to isolated martial-combat, Zachary O'Maille has turned the act of dueling into an art form. A keen eye and attention to detail allows him the ability to learn their opponent's idiosyncrasies while fighting. Zachary O'Maille then uses his own skills to capitalize on the opponent's weakness. Because of this calculated approach to isolated duels, Zachary O'Maille has a harder time taking on multiple opponents at once at higher skill levels.