The protagonist of the Halo series stands at 5 inches tall, and has more than 18 points of articulation. Equipped with his trademark assault rifle, Master Chief's mission is to protect Earth against the Covenant, an alien empire threatening the world in the 26th century. Biological and cybernetic enhancements and rigorous military training have resulted in Master Chief's unquestioned status as the finest soldier mankind has ever produced.

Developed by the United Nations Space Command (UNSC), Cortana is a smart A.I. with the ability to project herself as a holographic image and be transferred between computer systems, including the cybernetic armor of Master Chief. This figure's base features an LED light that illuminates her 4½ inch-tall figure.

The highest rank in the Brute hierarchy is the Chieftain, whose articulated figure is the tallest of the series at 6¾ inches. Belonging to the Covenant, the Brute Chieftain carries the gravity hammer, a close-range weapon with the ability to alter gravity at a local level and crush his enemies and surroundings.

To the benefit of the Covenant, Jackal Snipers have incredibly sharp reflexes and deadly aim. Standing at 4¾ inches, the Jackal Sniper is equipped with its signature beam rifle, which has the ability for long range shooting and a high degree of damage.

At 3¾ inches tall, the Grunt is a menace to the human race, and represents the vast majority of the Covenant infantry. The Grunts are the lowest tier of the Covenant hierarchy, and move in packs. They are expected to unquestioningly obey the commands of their Brute commanders. Outfitted with weapons including the Plasma Pistol and Needler, the Grunts may not seem much more than cannon fodder, but in groups, they can be deadly.

Much like the master chief figure, all of the Spartan figures will be 5 inches tall, with more than 18 points of articulation. Each figure will come with an assault rifle and grenade accessories, which can be hand-held or stored on the figure's back.