This advanced mobile suit was created by a resistance group at the L1 colony cluster for the sole purpose of battling Oz. The Wing Gundam can transform into a winged "bird mode" superior to any conventional fighter plane; in this form, it can survive re-entry and fly in Earth's atmosphere. Its primary weapon is the buster rifle, an immensely powerful beam weapon which can be fired only three times before its energy supply must be recharged. For close-range combat, the Wing Gundam relies on its shoulder-mounted machine cannons and the beam sabers stored in its shield.

This mysterious youth was sent from the L1 space colony cluster to fight against Oz. He goes by the alias Heero Yuy, after the martyred leader of the space colonies; his real name, like almost everything else about him, is unknown. Heero has been trained since childhood for his role as pilot of the Wing Gundam, an upbringing that has made him cold and ruthless. But thanks to his years of training, Heero has become a perfect soldier equally skilled in personal combat, explosives, and computer hacking.

This black, scythe-toting Gundam was created near the L2 colony cluster by the Sweeper Group salvage organization. The aptly-named Deathscythe is equipped with hyper jammers that conceal it from cameras and radar, allowing this Gundam to ambush enemy mobile suits and strike them down with one blow from its mighty beam scythe. Its buster shield also emits an energy blade, and can even be launched at nearby foes. Since the Gundam Deathscythe relies on short-range weapons, it's designed to dash towards its targets at high speed.

Duo is a member of the scavenger organization known as the Sweeper Group, which sent him to Earth to battle Oz. Despite the hardships he's suffered in his young life, and the seriousness of his mission, Duo is always cheerful and good-natured. But when he goes into battle as pilot of the Gundam Deathscythe, striking from the shadows with its lethal beam scythe, he truly earns his nickname "God of Death."

The most mysterious of the Gundam pilots, the young man who calls himself Trowa was sent to Earth as the pilot of the Gundam Heavyarms. The cool, quiet Trowa has nerves of steel and superb reflexes, qualities which serve him well in his cover identity as an acrobatic clown in a traveling circus troupe. He also has soldiering experience far beyond his years. When combined with his heavily-armed Gundam, Trowa's tactical skill and combat ability make him a veritable one-man army.

The Gundam Sandrock was created at the L4 colony cluster, using the resources of the wealthy Winner family. This powerful, heavily-armored Gundam is designed for hand-to-hand combat, and is particularly well-suited to desert conditions. Its main weapons are the curved, heat-radiating blades of its heat shotels; the Sandrock is strong enough to wield one of these huge blades with a single hand, or strike simultaneously with both. The Sandrock can mount its backpack, shield, and both heat shotels on its forearm to perform a deadly pincer attack called the "cross crusher."

Quatre is a young aristocrat, the thirtieth child - and only son - of a wealthy family of space colony developers. Though he's the most tender-hearted and gentle of the Gundam pilots, Quatre is just as brave and determined, and has defied his family's wishes in order to join the battle against Oz. Quatre is aided by a troop of forty loyal underlings and can draw on the Winner family's vast resources, assets which more than make up for his relative lack of fighting skill.

Created by the reistance fighters of the L5 colony cluster, this Gundam's name is derived from the Chinese phrase "god dragon." The Shenlong Gundam's specialty is close-quarters fighting, using its spear-like beam glaive and the extendable "dragon fang" claw built into its right arm. The muzzle of the dragon fang also contains a pair of medium-range flamethrowers; the Shenlong can grasp an enemy mobile suit with its claw, then activate these flamethrowers to perform the scorching "dragon fang fire" attack.

Wufei is the descendant of a legendary Chinese warrior clan, who sent him to Earth to fight against Oz. This proud fighter lives by a strict code of honor, punishing evil and enforcing justice as he sees fit. Wufei prefers to operate solo, since he has little patience for lesser warriors. These high standards make him equally contemptuous of his own failings in battle. The only ally he trusts is his Shenlong Gundam, which he has nicknamed "Nataku" after a hero of Chinese mythology.

This twenty-year-old museum piece was the first military mobile suit, and is the common ancestor of both the Gundams and Oz's own mobile suits. Oz deemed the prototype Tallgeese too expensive to mass-produce and too hard to pilot, so the design was simplified and scaled down to create the standard Leo. As a result, the Tallgeese's specifications are superior to those of most modern mobile suits, and this mothballed prototype is the only thing in Oz's arsenal capable of fighting a Gundam. However, its high acceleration and instability make flying the Tallgeese hazardous for even the best of pilots.

This mysterious mobile suit is created by OZ leader Treize Khushrenada, based on data from the Tallgeese and the other Gundams. In keeping with Treize's philosophy, the Gundam Epyon eschews cowardly long-range weapons in favor of chivalrous close combat. Its main weapons are a segmented, whip-like heat rod, and a powerful beam sword whose energy is supplied by a direct connection to the Epyon's generator. The Epyon can also transform into a "mobile armor" mode for high-speed flight.