Kadaj serves as the leader of the trio and is the embodiment of Sephiroth’s cruelty and insanity. He is the most prominent of the remnants, acting as a "larval" form of Sephiroth with a slender, wiry frame and shoulder-length silver hair. Driven by an obsession to find his "Mother" (Jenova), he is profoundly insecure about his own identity and existence, often questioning why he was chosen as a mere fragment. His personality is volatile; he oscillates between manic laughter, rapid speech, and sudden, cold detachment. Kadaj is a highly skilled, left-handed swordsman who wields the Souba, a dual-bladed katana. Arrogant and sadistic, he views humanity with deep contempt, believing them to be foolish and doomed to repeat past mistakes. He treats Cloud as a "brother" but despises him as a traitor, leading to intense, high-stakes confrontations throughout the film.

Yazoo represents the personification of Sephiroth’s allure. He is the most composed, calm, and level-headed member of the group, often acting as a mediator who keeps the more volatile impulses of his brothers in check. Despite his graceful and sometimes detached demeanor, he is deeply arrogant and prone to mocking his opponents rather than finishing them quickly, which often serves as a tactical weakness. Physically, he is exceptionally agile and strong, possessing combat capabilities that rival elite SOLDIERs. His fighting style focuses on precision and marksmanship, using a dual-barreled gunblade to complement his brothers' close-quarters combat. Like the others, he is fiercely devoted to the mission of finding Jenova and shows no regard for human life. He navigates the world with a cool indifference, often tilting his head to observe victims with disinterest, fully aware of the unsettling, predatory charisma he exerts over others.

Loz is the personification of Sephiroth’s physical might and violence. Unlike his brothers, he is defined by a striking, child-like emotional instability that makes him appear both reckless and impulsive. While he is the "brawns" of the group, his simplicity of mind leads him to treat combat as a game, often looking for fun rather than a swift victory. He is a master martial artist capable of immense physical feats, including punching the ground with enough force to cause significant destruction. In battle, he uses the Dual Hound, a weapon capable of firing projectiles and emitting electricity. Despite his intimidating physique, he is prone to petty tantrums and is easily provoked, yet he remains deeply loyal to Kadaj’s vision. Loz never questions his purpose, holding a blind, unwavering faith that the answers he seeks regarding his existence will be revealed the moment the Reunion is finally achieved.