Decimo has spent his life training as a mercenary and bounty hunter. Due to that, he grew up without being taught about, or using, the Force. He looks at problems from the perspective of a non-Force user and tends to act and think as if he does not wield such power himself. While Decimo isn't used to using the Force in his everyday life, he has even less practice using it on the battlefield. Instead, he relies more on pure, dumb luck and skill to get by day-to-day.

Decimo Inferni is no greenhorn when it comes to dealing with those who wish him ill. At some point, he managed to cross the wrong people, and now they've got a mark on his hide for it. While such experiences have hardened him for adrenaline-filled moments of evading those who seek to make him their quarry, he can never be quite sure if he is truly safe, for promises of wealth or power can turn even the most seemingly stalwart of allies to enemies with knives poised at his back.

Decimo Inferni doesn't like to work in groups or teams and feels most comfortable on his own. Decimo Inferni sticks to himself, sets his own pace, and doesn't share feelings or emotions with others. While the Lone Wolf can get things done quietly and efficiently, he tends to be emotionally cut off and has problems relating to his comrades.

While generally laid back and more than happy to offer a quip of sarcasm, Decimo Inferni's entire demeanor changes once combat begins. He becomes focused and quiet, with his smile replaced with a look of grim determination.

Born with an intractable will and limitless courage, Decimo Inferni will stand in the face of insurmountable odds and never retreat. Despite the fact that such acts of heedless bravery are inspiring and will sometimes result in victories worthy of song, just as often they result in his allies getting wounded or killed.

Decimo Inferni 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.