Age-24

Birth Date- A.C.171

Height-181 cm

Weight-68 kg

Hair Color-Light Brown

Eye Color-Sapphire Blue

Family- Mariemaia Barton-Khushrenada (Daughter) and Dorothy Catalonia (Cousin)

Love Interests-Leia Barton and Lady Une

Considered the primary antagonist in the series, his name is derived from the French word for "thirteen". A calm, calculating man, Treize is a complex individual, playing both the chivalrous, anachronistic knight and the ruthless tyrant. Treize is a master politician and manipulator second to none. He is an expert strategist and tactician on and off the battlefield. In addition, Treize is a crack shot, a superb, Western-style fencer, and a mobile suit designer of great ability, having built both the Epyon and Tallgeese II to his own specifications. He is also an excellent mobile suit pilot, displaying his ability several times during the series, most notably during the final battle against Chang Wufei.

On the surface Treize is cold and reserved, rarely letting his emotions get the best of him. He professes a love for war, believing that when properly conducted, it brings out the best in humanity. He expresses an interest in honor and chivalry comparable to that of an old-fashioned aristocrat, believing that one should settle matters of honor in single combat, and considers himself a gentleman. This is juxtaposed with his ruthlessness in pursuit of his ambitions and his utter lack of scruples when it comes to holding onto power.

Beneath the surface, he is fanatically loyal to his friends. He dislikes hurting people, and suffers a great deal of guilt over the deaths he has caused. He also seems to have some difficulty recognizing, and dealing with, his own emotions. When Lady Une, who Treize has viewed as a pawn up until this point, is shot by Tsubarov, Treize is stunned by how strongly he reacts to it, realizing with a start that he may well have been in love with her all along. He experiences further difficulties when it comes to reconciling his personal feelings about war with his militaristic philosophy, which complicates his already complex life.

Episode Zero