Wilson is still deeply affected by his time in the Imperial Stormtrooper Corps. His memories are still being obstructed by the walls that Imperial Intelligence put up in his mind. He doesn't remember his mother's name, the names (or existence) of his siblings, and can barely recall that he was born on Coruscant. He is aware that the Empire took these memories from him, and this is one of the reasons why he is driven to fight against the Empire. Another reason for his turn against his former masters is his belief in certain morals which they forced him to go against in certain actions in which he participated. He is seeking vengence against the Empire, not just for himself, but for the innocents and their families which he was forced to kill.
Wilson is also a force sensitive, which is presumed to be one of the reasons, along with a traumatic event which caused him to go against his deepest moral convictions, why he was able to break some of his Imperial mental barriers. This, combined with his strong will, ultimately allowed him to break the grasp of the Empire.
Wilson is not extremely intelligent, but he is not dumb by any means. He has a very strong will, and a rugged persistence which enabled him to persevere in the Raithal Academy. He is also very aggressive by nature, which, in addition to his excellent physical attributes and his strong will, made him a perfect stormtrooper candidate. Unfortunately for the Imperials, these qualities are why he has become so feared in the bounty hunter and Imperial Intelligence communities. Since his days in the Empire, Wilson's skills in combat have steadily improved, making him a venerated opponent to all he faces. Many opponents have underestimated him, believing that his size in some way limits his agility; his agility is attested to by the number of people who he has put into an early grave for believing in such a myth.
Personality-wise, Wilson is rather interesting. His hate for the Empire constantly pushes at the limits of his being, and yet he is always able to contain it. He is calm and collected on the battlefield, and even displays a degree of levity in bad conditions. He is also curious, almost to a fault, and desires to learn new things, and improve in areas in which he is already knowledgeable. Wilson also is a rather selfless person, perhaps because of the atrocities he committed as a stormtrooper, and will risk his life for others. He is also prone to taking big risks when they aren't always necessary, trying to "make the big play" even after the need for such action has passed. Wilson is also very egotistical. He tends to start fights easily, often at "the drop of the hat", usually not needing to find a good reason for starting the fight. He also believes himself to be a lady's man, but lacks very much experience in the field of women. Lastly, Wilson has recently learned how to harness the powers of the force, and is currently trying to become a Jedi. Although he has no idea how he will attain such a goal, he remains determined. He is continually learning about himself and his new abilities, and continually tries to do as he believes a Jedi would (though not always with success).
By Thomas Hill