Marche is the main protagonist of Final Fantasy Tactics Advance. At the beginning of the game, Marche is a New Transfer Student from a land which snow was never fallen. He joined with his new friends Ritz and Mewt to read an old book, which changes St. Ivalice into the magical land of Ivalice. Compared to his friends, he is the only one who wishes to get out of the weird land and revert it back to normal.
Expy: Marche has a resemblance to Final Fantasy Tactics' Ramza - both in appearance and in philosophy (doing what he feels is right rather than following everyone else), as well as being villainised for his actions by the official records.
Ritz is the Class Head of Marche's new class. At the beginning, Ritz was supposed to fight against Marche's team during the snowball fight, but soon switches to Marche's team. One of the bullies teases her as a "prissy grandma" due to her white hair, which she dyes red. When St. Ivalice changed into Ivalice, Ritz had natural red hair and leads a clan named "Clan Ritz" with her friend Shara.
Guest Star Party Member: She and Marche fight side-by-side (in two main-story missions and two optional ones), and she operates in this capacity during these bouts. The next time, they fight each other.
Hair Color Dissonance: During the epilogue, her hair was light violet, but her friend commented her hair "as white as snow".
Mewt is the one who triggered the power of the Gran Grimoire. He is one of Marche's new friends who was always bullied in school. When they were still in St. Ivalice, Mewt was hit by a lot of snowballs, including one with a rock, causing his forehead to bleed. He then introduces his friends Marche and Ritz an old book he found at a bookstore. In Ivalice, however, he is the Prince and was highly respected by its citizens. He even has Babus and Llednar to serve for him.
Bookworm: Mewt is the class librarian, and his connection to grimoires indicates this.
It's also implied reading books makes one connected to magic in some way or is an indication that all mages are bookworms because they'd have to be smart to cast magic. Mewt's stats in the snowball fight show that he has a few points in Magic Attack while all the other children have no magic power at all.
The Caligula: Makes the laws harsher whenever he feels threatened by Marche's efforts, causing quite a bit of resentment toward him and the queen.
Screw the Rules, I Make Them!: Remedi will issue any edicts that Mewt wants to make. This comes into play as a game mechanic by increasing the number of laws during a battle after certain points in the story.
Spoiled Brat: Mewt becoming a prince in Ivalice turned him into this. Anything he wants, his mother gives him and if she isn't around for it, Babus or Cid will grant Mewt's desires. When he hears how Marche is avoiding everything he throws at him, Mewt turns to his mother to make everything better and acts helpless if she isn't around.
Knowledge Broker: A minor example being a street ear who gives clans tips and information.
My God, What Have I Done?: After Marche makes him realise just how ungrateful he's been concerning his family's efforts (and that he can still go on living despite how hard it is, possibly even being able to walk someday in the future), Doned breaks down in his older brothers arms and apologises for what he's been doing to him.
Non-Action Guy: Even able to walk, he's too young to be able to fight in a clan yet.
Spoiled Brat: Deconstructed. He sends people knowing they could well and truly kill his brother under some circumstances, but he also has a Freudian Excuse in that he especially doesn't want the world to return to normal. He is implied to be a bit of one in the real world as well, where he doesn't appreciate how much his family does for him.
Throwing Off the Disability: In Ivalice, crippled Doned could walk. Official artwork seems to have him and Marche standing in a photo together in the real world.
The Unfought: He works against Marche by tipping him off to bounty hunters, guards or rival clans, but never faces him in combat. A wandering clan called the "Doned Faction" can be encountered, but he isn't in it. Justified that he is not old enough to engage.
Heel-Face Turn: Or rather, he swears neutrality and service to the Law rather than to the Palace; however, he discreetly supports Marche's efforts to return the world to normal, aiding him for the rest of the main story.
Duel Boss: The second time he's confronted, although Marche's goal is to destroy the Exodus Fruits rather than defeat him.
Fire-Forged Friends: After the main story is over, one can take a mission which will end in him being recruitable. Following the fight against Li-Grim/Remedi, Marche offers him friendship despite their earlier clashes - after fighting side-by-side more recently, "why not?". Babus accepts, although he doesn't go as far as calling them "close friends", a sentiment Marche agrees with.
My Master, Right or Wrong: Says as much to Marche - he causes Mewt pain, and that's reason enough for him to oppose him. When he starts aiding Marche's efforts, he does so purely because he starts to believe it would be better for Mewt to face reality.
Prematurely Bald: He sounds younger compared to Ezel and other Nu Mou have hair.
It is possible he has thin, white fur. Being a high-ranking royal servant, he would be more well-groomed than other Nu Mou.
Screw the Rules, I Make Them!: Literally made them. She created Ivalice according to Mewt's wishes and as a result, she has an ability that lets her change the laws at will, even if said laws have been nullified.