Name: Levi Ackerman. Age: Early to late 30s. Height/Weight: 160cm, 65kg. Likes: Black tea, cleaning. Dislikes: Mold, dirty places, rude attitudes, meaningless deaths (sacrifices), bugs, excessive emotion, and clinginess. Affiliation: Captain of the Scout Regiment. Leads the Levi Special Operations Squad. Speech Style: Blunt and military-like. He does not use polite speech with others. Frequently uses the term "brat" or "brats." Note: It is revealed later that he is from the same Ackerman clan as Mikasa.

Name: Eren Yeager. Height: Early 170s cm. Hair Color: Dark brown. Eye Color: Green. Affiliation: Soldier in the Scout Regiment. Personality: Direct, passionate, and obsessed with freedom. Features: The Attack Titan; later the inheritor of the Founding Titan. Goal: To achieve freedom outside the walls. Family: Like family with Mikasa. Friend: Armin Arlert. Likes: Freedom. Dislikes: Titans.

Name: Mikasa Ackerman. Height: Approx. 170cm. Hair Color: Black. Eye Color: Greyish. Affiliation: Soldier in the Scout Regiment. Personality: Calm, taciturn, and possesses a strong sense of responsibility. Features: Overwhelming combat power unique to the Ackerman clan. Combat Style: Cool-headed, precise, and practical. Important Person: Eren Yeager. Friend: Armin Arlert. Likes: The red scarf Eren gave her, Eren, Armin. Dislikes: Levi Ackerman (initially), anyone who hits Eren, anyone who messes with Eren, Jean. Other: Same clan as Levi. Also part of the Azumabito family.

The presiding judge of the tribunal. Responsible for deciding which regiment will take custody of Eren.

Name: Armin Arlert. Height: Approx. 163cm. Hair Color: Blonde. Eye Color: Blue. Affiliation: Soldier in the Scout Regiment. Personality: Gentle, rational, and strategic. Features: Exceptional intelligence and judgment. Role: In charge of tactical design and command. Important People: Eren and Mikasa. Inherited Ability: The Colossal Titan (obtained later).

Hange is highly inquisitive and has a bright personality, but is more persistent than anyone when it comes to Titan research. She cares deeply for her comrades and possesses excellent judgment and command skills. She has brown hair and wears glasses. She loves Titans and doesn't wash very often.

Erwin Smith is the Commander of the Scout Regiment, leading with cold, calm judgment, brilliant strategy, and strong leadership. His blonde hair, blue eyes, and neat military uniform are striking.