1. John-117 (Master Chief): The legendary Spartan supersoldier whose unwavering courage and skill saved humanity.
2. Avery Johnson: The tough-as-nails Sergeant who fought alongside the Master Chief on many missions.
3. Jacob Keyes: The determined Captain who led the fight against the Covenant on Installation 04.
4. Thel ‘Vadam (The Arbiter): The former Supreme Commander who sought redemption by aiding the humans.
5. Franklin Mendez: The grizzled Spartan trainer who molded the Master Chief and his fellow Spartans.
6. Edward Buck: The wisecracking ODST who led the squad on daring missions across the galaxy.
7. Thomas Lasky: The courageous UNSC commander who helped turn the tide of the war against the Covenant.
8. James Ackerson: The ambitious Colonel who oversaw the unethical Spartan-III program.
9. Terrence Hood: The gruff Fleet Admiral who led the UNSC’s forces during the devastating conflict.
10. Rtas ‘Vadum: The loyal Sangheili commander who fought alongside the Arbiter and humans.
1. Cortana: The highly advanced AI companion who guides Master Chief through his missions, known for her unwavering loyalty and strategic brilliance.
2. Miranda Keyes: The courageous and capable commander who leads humanity’s forces against the Covenant threat, respected for her tactical prowess.
3. Halsey: The brilliant and controversial scientist responsible for creating the Spartan-II program, her methods were often morally questionable.
4. Sarah Palmer: The resolute and no-nonsense commander of the Spartan-IV program, known for her unwavering dedication and combat expertise.
5. Kelly-087: One of the most skilled Spartan-IIs, renowned for her exceptional speed and agility, as well as her loyalty to her teammates.
6. Melissa McKay: A talented and resourceful ODST soldier who played a crucial role in the battles against the Covenant and the Prometheans.
7. Parisa: A skilled and courageous Sangheili warrior who fought alongside the humans against the Covenant and the Prometheans.
8. Jul ‘Mdama: The charismatic and influential leader of the Covenant remnant faction, determined to avenge her fallen comrades.
9. Olympia Vale: A brilliant and daring human scientist who specializes in Forerunner technology and aids in the fight against the Prometheans.
10. Gabriela Dvořák: A skilled and dedicated ONI operative who plays a vital role in uncovering the secrets of the Forerunner artifacts.