Huragok, also known as Engineers, are a race of biological supercomputers that were created by the Forerunners. They are the only known non-combatant race to ever serve the Covenant Empire, though some are rigged to explode like suicide bombers. After the Covenant's collapse, those who did not flee or get taken by the San Shyuum joined the UNSC. While they served the Covenant though, they repaired their technology as well as gave nearby Covenant forces shields.
Covenant Sangheili: Ardo 'Moretumee | Bako 'Ikaporamee | Gek 'Lhar | Harka | Jul Mdama | Lat 'Ravamee | Luro 'Taralumee | Merg Vol | Ontomee | Re'gish Wamik | Rho 'Barutamee | Ripa 'Moramee | Rtas Vadum | Thel 'Vadam