This is a list of characters in the Halo Universe who are significant but are never named:
Human[]
- Unnamed Admiral
- Unnamed Bumblebee Pilot
- Unidentified Communications Officer
- Unnamed Commuter
- Unnamed Corpsman
- Unnamed Female Corporal
- Unnamed Rebel Group
- Unnamed Lieutenant (Halo 2)
- Unnamed Lieutenant (Halo Wars)
- Unnamed Lieutenant (ilovebees)
- Unnamed Marine (Prototype)
- Unnamed Marine Officer (Mombasa)
- Unnamed Marine Officer (New York)
- Unnamed Marine Shock Trooper
- Unnamed Medical Technician
- Unnamed Navy Captain
- Unidentified Navy captain (Reach)
- Unnamed NMPD Officer
- Unidentified Officer (The Babysitter)
- Unnamed Police Officer (Interrogator)
- Unnamed Receptionist
- Unnamed Salesman
- Unnamed Spartan (Harvest)
- Unnamed UNSC Colonel
- Unnamed UNSC Navy Captain
- Unnamed UNSC Navy Captain (Armor Testing)
- Unnamed waitress
Covenant[]
- Unidentified Prophet (The Babysitter)
- Unidentified Prophet (The Duel)
- Unnamed Elite Bridge Officer
- Unnamed Ship Master of the Rapturous Arc
- Unnamed Covenant AI (Ascendant Justice)
- Unnamed Covenant AI (Truth and Reconciliation)
- Unidentified Chieftain (The Babysitter)
- Unnamed Sangheili
- Unnamed Sangheili Shipmaster (The Return)
- Unnamed San'Shyuum scribe