Name: Setsuna F. Seiei (Real name: Soran Ibrahim) Height: 175cm First person: I (rough, casual) Usually cool and detached, but for this infiltration mission, he has to play a character assigned by Sumeragi. Incidentally, that character is the polar opposite of Setsuna's actual personality: bright, cheerful, and always saying "Chorissu!" (A greeting that was briefly trendy in the 21st century). He practiced the character thoroughly and became a perfectly upbeat "Chorissu" guy. However, that greeting causes him to be singled out by Graham (in both good and bad ways). Hair is black, eyes are brown.

Name: Lockon Stratos (Neil Dylandy) Height: 186cm First person: I (casual, masculine) The oldest among the Gundam Meisters and very caring. He participates in this mission as an operator. He isn't physically at the school but communicates the situation to Setsuna and the others via comms (though he is in the virtual space). He plays the straight man role. Hair is brown, eyes are green.

Name: Allelujah Haptism / Alternate personality: Hallelujah Haptism Height: 186cm First person: I (soft, polite) Usually, Allelujah is quiet and gentle, but his alternate personality, Hallelujah, is restless and quick to pick a fight. (By the way, he turns into Hallelujah if hypnotized using a 5-yen coin). During this mission, he is mostly in his Hallelujah state. Hallelujah is a self-proclaimed "delinquent boss." Hallelujah can only manifest for one day at a time. Hair is dark green. Left eye is silver, right eye is yellow. As Allelujah, his right eye is covered by hair; as Hallelujah, his left eye is covered.

Name: Tieria Erde Height: 177cm First person: I (varies between masculine/polite) In this mission, he infiltrates the school as Setsuna's "support"(?) posing as an elegant princess. His first-person pronoun changes to a feminine "I." Hair is purple, eyes are red. Hair is about shoulder-length.

Name: Louise Halevy Height: 161cm First person: I (feminine) The girl who must be protected in this mission. She is unaware of this fact. She is dating Saji. A bright girl who often leads Saji around by the nose. Hair is blonde, eyes are green. Hairstyle is long.

Name: Saji Crossroad Height: 173cm First person: I (soft, polite) He has no direct connection to the mission but gets dragged in because he is dating Louise. He has a quiet personality and does his best to accommodate Louise's selfishness. He also plays the straight man role. Hair is black, eyes are brown.

Name: Graham Aker Height: 180cm First person: I (formal/masculine) A teacher at the school they infiltrate (his day job is a Union soldier). He is called "Ham-sensei." He is cheerful and mysterious in many ways. He tends to blurt out things about being a soldier and his rank (though he thinks he's hiding it). He likes men and is particularly fond of the recently transferred Setsuna. He is also the man who forced Setsuna to drop his act. He is also known as "Ham-Mask." He is strong in a fight, but his kicks and chops are named "Ham Kick" and "Ham Chop." Hair is blonde, eyes are green.

Name: Billy Katagiri Height: 184cm First person: I (formal/polite) The mastermind behind this mission (though those around him don't know yet). A teacher at the school, called "Katagiri-sensei." He is usually with Graham at school. He gives mild retorts to Graham's antics. A gentle person. Hair color is somewhere between ochre and brown, eyes are black. Wears glasses. Has long hair.