Levi Ackerman, the Survey Corps' legendary captain, balances a cold, imposing presence with a deeply hidden sense of morality and compassion. Physically, he is surprisingly short at 5'2", but he boasts a powerful, well-developed physique carved out by years of mastering vertical maneuvering equipment. His youthful face is framed by a signature black undercut curtain hairstyle, which is often contrasted by a permanent, grumpy scowl and narrow, intimidating dull gray eyes underlined by dark circles from chronic insomnia. He is typically seen wearing the tan Scout Regiment uniform paired with a crisp white ascot—at least until later battles leave him heavily scarred and missing fingers. Personality-wise, Levi is notoriously a blunt, cynical "clean freak" with an obsessive-compulsive need for spotlessness, a trait born from growing up in the squalor of the Underground. While he presents an unapproachable, detached, and fiercely pragmatic exterior, he possesses an unbreakable will and a profound, quiet empathy for his comrades. Rather than comforting others with words, he expresses his intense devotion to humanity by carrying the burden of brutal, heartbreaking tactical choices to ensure that the sacrifices of his fallen soldiers are never in vain.

She is a tall, athletic woman of partial Asian heritage, possessing pale skin, expressive grey eyes, and straight black hair that she cuts short to avoid interference during combat. She is rarely seen without her signature red scarf, a deeply treasured gift from Eren Yeager. Behind her calm, emotionally guarded, and often detached demeanor lies a deeply traumatized individual who values her chosen family above all else. Driven by an unyielding loyalty, she exhibits a fierce, protective instinct that borders on obsession when keeping her loved ones safe, combined with a lethal, unparalleled combat prowess that makes her one of humanity's greatest assets.

Armin Arlert is a young man with a slight, petite build, distinct blond hair—which transitions from a boyish bowl cut to a shorter undercut—and large, expressive blue eyes. Though initially timid and plagued by self-doubt due to his lack of physical strength, he possesses a deeply empathetic, fiercely loyal nature and a brilliant, analytical mind that makes him an invaluable strategic genius.

Jean is tall, muscular young man characterized by his small, intense brown eyes and a long, stern face that earns him the nickname "horse face". He sports a distinct ash-brown undercut hairstyle that transitions into a longer look and a goatee as an adult. His personality, Jean is brutally honest, pragmatic, and never hesitates to speak his mind, even if it sparks conflict. Though he begins his military journey driven by selfish desires for a safe, comfortable life in the Military Police, he possesses a strong moral compass. Following the tragic loss of close comrades, Jean undergoes massive character growth, transforming from an arrogant, hot-headed teenager into a empathetic, strategic, and reliable leader within the Survey Corps.

Connie Springer is a slim-built soldier recognized by his sharp hazel eyes and distinctively shaved hair, which transitions from a buzz-cut style in his youth to a slightly longer, graying look as he grows taller over the years. Initially serving as the naive and enthusiastic comic relief of the group, he is an outgoing, eager-to-please cadet who loves goofing around with his friends but frequently struggles to comprehend complex military strategies. Underneath this thickheaded and easily excited exterior lies a deeply loyal comrade whose lighthearted personality hardens into a serious, grief-stricken resolve as he experiences devastating personal loss and the brutal realities of war.

Eren starts his journey as impulsive, fiercely passionate, and strong-willed teenager with short black hair, grey-green eyes, and an intense drive to kill Titans. As the harsh realities of war confront him, his appearance matures significantly as he grows to six feet tall, shifts to shoulder-length hair tied in a bun, and adopts a slight goatee. Driven by an unyielding obsession with freedom, his hot-headed personality

Sasha Blouse is a slender young woman of average height, recognized by her light brown eyes and reddish-brown hair typically kept in a ponytail with parted bangs. She is famously known for her cheerful, eccentric, and deeply food-obsessed personality, which frequently lends comic relief to her bleak surroundings. Despite her initially timid nature and comical obsession with eating, she possesses sharp hunter instincts, incredible situational awareness, and deep bravery when protecting others.