A resident of the resource satellite Heliopolis. Caught up in the Gundam seizure operation, he ends up becoming the pilot of the Earth Alliance's secret weapon, the Strike Gundam. MECHA Strike Gundam - Strike An almighty machine capable of swapping equipment between three types: a standard mid-to-close range space combat spec, a melee spec equipped with physical blades, and a bombardment spec equipped with a long-range cannon. Piloted by Kira. Model Number GAT-X105 - Aile Strike A mid-to-close range space combat spec featuring a high-thrust booster unit and large variable wings. Model Number GAT-X105+AQM/E-X01 - Sword Strike A melee combat spec featuring the massive anti-ship sword "Schwert Gewehr" on its back. Model Number GAT-X105+AQM/E-X02 - Launcher Strike A bombardment spec with enhanced firepower, equipped with the ultra-high-speed impulse cannon "Agni" and vulcan guns. Model Number GAT-X105+AQM/E-X03 - Perfect Strike A fully armed spec equipped with the Multiple Assault Striker, which integrates the Aile, Sword, and Launcher equipment. Model Number GAT-X105+AQM/E-YM1 Freedom Gundam A ZAFT-made MS piloted by Kira. Its power source is a nuclear engine with a Neutron Jammer Canceller rather than a conventional battery. Equipped with two beam cannons on its back and two railguns on its hips, it possesses near-invincible strength. Model Number ZGMF-X10A METEOR Enhanced armament for the Freedom and Justice. When not in use, it is docked at the bow of the Eternal.

Murrue Ramius Captain in the Earth Alliance. Originally came to Heliopolis as the executive officer of the new battleship Archangel, but became the acting captain after the commanding officer was killed in action. She throws herself into battle for the sake of peace, but possesses a compassionate and feminine side. Natarle Badgiruel Combat commander of the Archangel. Born into a military family, she has a typical soldier's temperament, prioritizing mission completion above all else. At times, her coolness saves everyone. Flay Allster A student at Heliopolis and the girl Kira has feelings for. A typical upper-class girl. Miriaria Haw Kira's friend. Caught up in the battle at Heliopolis, she takes refuge on the Archangel. Afterwards, she works as an operator. A young woman. Tolley Koenig A student at the industrial college and Kira's classmate. A young man. Sai Argyle A student at the industrial college and Kira's classmate. A young man. Kuzzey Buskirk A student at the industrial college and Kira's classmate. A young man. Arnold Neumann Earth Alliance soldier. Chief helmsman of the Archangel. A man. Dalida Lolah Chandra II Earth Alliance soldier. Communications officer of the Archangel. A man. Jackie Tonomura Earth Alliance soldier. CIC officer of the Archangel. A man. Romero Pal Earth Alliance soldier. Responsible for fire control on the Archangel. A man. Kojiro Murdoch A veteran crew member in charge of maintenance on the Archangel, which is otherwise filled with inexperienced recruits. He has a sharp tongue but his skills are certain, and he is deeply trusted by Mu and Kira. MECHA Archangel-class Assault Mobile Special Ship Archangel The Earth Alliance assault mobile special ship that Kira and the others board. A new type of ship secretly developed by the Atlantic Federation, it visited Heliopolis for the purpose of Gundam deployment. Model Number LCAM-01XA

The other protagonist. Kira's best friend and rival. He participates in the Gundam seizure operation and captures four of the five Gundam units. He becomes the pilot of one of them, the Aegis Gundam, and engages in fierce battles with Kira. A young man. MECHA Aegis Gundam A machine with excellent high-speed combat capabilities in space and air. Its major feature is the ability to transform into a Mobile Armor, with a frame structure fundamentally different from the other four Gundams. Piloted by Athrun. Model Number GAT-X303 Justice Gundam The strongest MS created by ZAFT based on data from the captured GAT series. It is a sibling machine to the Freedom. Like the Freedom, it is equipped with a Neutron Jammer Canceller and features Phase Shift armor that never goes down. Piloted by Athrun. Model Number ZGMF-X09A METEOR Enhanced armament for the Freedom and Justice.

An ace Mobile Armor pilot for the Earth Alliance. He joins the battle against ZAFT forces after serving as an escort for the Gundam delivery. Thereafter, he travels with Kira and the others, serving as a big brother figure. A man.

The daughter of Siegel Clyne, Chairman of the PLANT Supreme Council, she enjoys immense support as the Songstress of the PLANTs. Athrun is her fiancé, and she loves the Haro he gave her. A young woman. Piloted Craft Eternal (latter half)

A girl Kira met at Heliopolis. The daughter of Uzumi Nara Athha, the Representative of the neutral nation Orb. She has an incredibly active, almost reckless personality. A young woman.