About Halo Characters
Welcome to the comprehensive Halo characters list and database. Here you’ll find detailed profiles of all major and supporting characters in the Halo series. Each profile covers abilities, personality traits, backstories, and relationships.
What You'll Discover
- Complete character bios and personality types
- Unique abilities, roles, and gameplay traits
- Lore connections, occupations, and recurring appearances
Character Roles in Halo
Halo features a wide variety of characters with distinct roles and responsibilities:
- Artificial Intelligence/Companion characters
- Flood Compound Intelligence characters
- Spartan Super-Soldier/Protagonist characters
- Covenant Supreme Leader characters
- Covenant Warriors characters
- Marine Non-Commissioned Officer characters
Below you’ll find the complete list of Halo characters, organized for easy browsing and discovery.
Cortana
Advanced AI construct created from a clone of Dr. Catherine Halsey's brain, Master Chief's closest companion.
Personality
Abilities
Notable Items
Don't make a girl a promise... if you know you can't keep it.
Cortana
Advanced AI construct created from a clone of Dr. Catherine Halsey's brain, Master Chief's closest companion.
Gravemind
Collective consciousness of the parasitic Flood, representing the ultimate threat to all sentient life.
Personality
Abilities
I am a monument to all your sins.
Master Chief Petty Officer John-117
Legendary Spartan super-soldier and humanity's greatest warrior in the fight against alien threats.
Personality
Abilities
Notable Items
I need a weapon.
Master Chief Petty Officer John-117
Legendary Spartan super-soldier and humanity's greatest warrior in the fight against alien threats....
Prophet of Truth
Manipulative leader of the Covent who seeks to activate the Halo rings for religious purposes.
Personality
Abilities
I am Truth! The voice of the Covent!
Sangheili (Elite)
Proud warrior race that served as the military backbone of the Covent before the Great Schism.
Personality
Abilities
Wort wort wort!
Sergeant Major Avery Junior Johnson
Tough-as-ils Marine sergeant and one of the few humans immune to Flood infection.
Thel 'Vadam (The Arbiter)
Former Covent Supreme Commander who becomes an ally to humanity after learning the truth about the Halo rings.
Personality
Abilities
Notable Items
Were it so easy.
Thel 'Vadam (The Arbiter)
Former Covent Supreme Commander who becomes an ally to humanity after learning the truth about the...
Unggoy (Grunt)
Small, methane-breathing aliens serving as cannon fodder in the Covent military hierarchy.
Personality
Abilities
Run away! Run away!
UNSC Marine
Brave human soldiers fighting on the front lines against overwhelming alien forces.
Personality
Abilities
Oorah! Let's get some!
Ur-Didact
Ancient Forerunner military commander driven mad by imprisonment and torture, seeking revenge on humanity.
Personality
Abilities
So fades the great harvest of my betrayal.