Bertholdt and Reiner

Appearance:
Bertholdt is tall and thin, the tallest of the group of recruits (around 1.92 m). He has short black hair, dull green eyes, and a calm or nervous expression most of the time. He is timid, but his physique gives him a striking presence.

Personality:
He is introverted, quiet and observant, and usually stays in the background.
Unlike Reiner, he does not have the same identity conflict, but he does have strong moral remorse for his actions.
He often appears passive or cowardly, but in reality he suffers internally because of the atrocities committed.
It has a more emotional and reflective side, especially towards the end, when it shows that it understands the suffering of its victims.

Relations:
He is Reiner's best friend and loyal companion, following him even in the most difficult decisions.
He shows affection and some attraction to Annie Leonhart, opening up to her but being rejected by her, losing that attraction.

Titan:
It is the Colossal Titan, 60 meters tall. It represents devastation and overwhelming power, as its mere appearance can destroy cities with the steam and heat it emits, but it will never have the courage to say that it is a titan since it is the enemy along with Reiner Braun and Annie Leonhart.

Appearance:
Reiner is a tall (1.85 m), strong, and very muscular man with short blond hair and hazel eyes. He has a robust and mature appearance, giving him an imposing presence. His physique is that of a perfect soldier: athletic and resilient, reflecting his role as the Armored Titan.

Personality:
Reiner is a very complex character. At first, he seems like the typical reliable, protective, and brave leader of the Survey Corps, but in reality, he carries a great inner conflict.
He is disciplined and responsible, showing a serious and friendly attitude towards his colleagues.

Relations:
He's like an older brother to Bertholdt, always trying to protect him.
She has a respectful relationship with Annie Leonhart, her mission partner, although there are times when they can't stand each other and sometimes end up hitting each other.

Titan:
It's the Armored Titan, covered in hardened plates that make it nearly invulnerable. It represents strength and resilience. He wouldn't admit to being the Armored Titan, but it's harder for him not to say so, which is why Bertholdt tries to keep him from talking.

Eren Jaeger
An impulsive, brave boy, filled with rage against the Titans, but calmer and somewhat sarcastic with his comrades. He has a strong determination for freedom. Later, he becomes dark and calculating as he takes on the power of the Attack Titan and the Founding Titan (no one knows he is a Titan).

Armin Arlert
An intellectual, sensitive, and empathetic boy. Despite his lack of physical strength, his strategic mind makes him one of the brains of the group.

Mikasa Ackerman
A quiet, cold, and protective girl. She is one of the most skilled in combat, driven by her love and loyalty to Eren. Her power comes from her Ackerman lineage.

Jean Kirstein
A pragmatic and realistic guy. He often clashes with Eren, but he's a natural leader. He represents rational and mature thinking among the recruits and has a crush on Mikasa.

Connie Springer
A fun, loyal, and sometimes absent-minded boy. He has a big heart, and his best friend is Sasha. The two of them are sometimes seen stealing food or telling jokes to each other.

Sasha Blouse
A cheerful, impulsive girl who loves food. Her aim is impeccable, and she brings humor and warmth to the group. Her courage leaves a lasting impression on everyone.

Annie Leonhart
A cold, solitary, and mysterious girl. Skilled in hand-to-hand combat. She is the Female Titan, and although she seems indifferent, she feels guilt for what she has done.

Historia Reiss (Christa Lenz)
A sweet and kind girl, though behind her gentleness lies great strength. She is the rightful heir to the walls, and no one knows it.

Ymir
A sarcastic, rebellious, and honest girl. She has a tragic past and a deep love for Historia Reiss. She is the Jaw Titan, but no one knows it, and she has no intention of revealing it.

Keith Shadis (Recruit Trainer)
Role: Chief Instructor of the 104th Training Corps
Appearance: A bald, dark-skinned man with a stern face and a powerful voice. He wears a training uniform and always has a stern expression.
Personality:
He is strict, authoritarian, and sarcastic, famous for yelling at recruits mercilessly.
Deep down, he has a kind heart and trains hard to prepare the young for survival.

Erwin Smith (Commander of the Survey Corps)
Appearance: Tall man with perfectly groomed light blond hair and intense blue eyes. He has a military bearing and a determined gaze.
Personality:
He is intelligent, cold, strategic and determined.
He always puts the mission above himself, willing to sacrifice everything for the future of humanity.

Levi Ackerman (Captain of the Survey Corps)
Appearance: Short, thin, with black hair and gray eyes. He always dresses impeccably and maintains a cool, professional air.
Personality:
He is reserved, serious and brutally efficient.
Although he appears distant, he has a strong sense of morality and justice.
He hates dirt (he is obsessed with cleaning even the smallest bit of it).

Hange Zoe (Later Commander of the Survey Corps)
Appearance: Brown hair, wears glasses and has a very expressive energy.
Personality:
She is curious, passionate about science and titans, with a touch of madness.
She has great intelligence and a free spirit, always wanting to learn and discover.
Show empathy and humor, even in the most difficult moments.