John Gattoh is a member of the Brotherhood of the Force. An Acolyte for the Brotherhood, he is a prominent field commander. John is consider a Sentinel or someone that is tasked to hunt down "miss users" or rather Dark Jedi and Sith. He is one of many field commanders that runs a Sentinel operation and is mostly tasked to the Corellian Trade Spine region, which is the most dangerous region in the Galaxy for Dark Force activity.
Surprisingly, John has not taken an Apprentice like most Acolytes do in the Brotherhood.
John has somewhat of a cold persona to him. It had developed overtime by hunting darksiders’. Because he lives most of his time undercover, he tends to hold in his emotions and doesn't let people in. John is a hopeless romantic because he has such a dysfunctional and some times cruel life. He tends to act negatively towards those he is attracted too in order for them to not know that he likes them. Though he is a great at hiding his feelings, he tends to slip in front of people he begins to care for. John is very loving to his best friends and old School mates, Alexander Cain, William Erwels, and Patrick Primus, he's also best friends with Maxus J. Gerhard.
John is fluent in a form of Echani martial art. It is a mixture of standard military CQC and Echani fighting techniques. This type of mix martial arts is trained to all Acolytes. Of course this style of combat uses the use of vibro weaponry and blasters. This new style has been incorporated the use of lightsaber combat. Most used forms of lightsaber forms are; Ataru and Form V: Shien / Djem So. John is fluent in both styles of lightsaber combat.