Heavy Grunts are high Covenant military Grunts which are deployed to use of heavy weaponry, turrets and small vehicles.

Heavies are often found operating as heavy support units and usually operate heavy weapon systems such as Plasma Cannons, Shade Turrets and Fuel Rod Guns with deadly effect. During the Fall of Reach, Heavies are usually seen operating plasma turrets on Wraiths. They will not usually retreat from their position unless if their out of range or too close to use it, then they will pull out Plasma Pistols to act as a standard Grunt and fire at the player. Unlike most Grunts, Heavies rarely throw Plasma Grenades nor suicidal attack. In Halo 2, Heavies usually carry and man Plasma Cannons. On Halo 3, Heavies are usually deployed in Covenant Watch Towers to fire with Fuel Rod Guns or with a Plasma Turret.

           Halo Villains

The Flood | Huragok | Mgalekgolo | Jiralhanae | Kig-Yar | Sangheili | San Shyuum |

Covenant Empire
Covenant High Council: Prophet of Truth | Prophet of Mercy | Prophet of Regret

Covenant Sangheili: Ardo 'Moretumee | Bako 'Ikaporamee | Field Marshal | Harka | Lat 'Ravamee | Luro 'Taralumee | Merg Vol | Ontomee | Re'gish Wamik | Rho 'Barutamee | Ripa 'Moramee | Rtas Vadum | Thel 'Vadam

Covenant Jiralhanae: Lepidus | Parabum | Tartarus

Storm Covenant
The Didact | Jul Mdama | Gek 'Lhar | Parg Vol | Kitun 'Arach

Cortana | Warden Eternal | Guardians | Prometheans

The Banished
Atriox | Decimus | Let 'Volir

Office of Naval Intelligence
Jameson Locke | James Ackerson

Jerald Mulkey Ander | Robert Watts

343 Guilty Spark | Commissioner Kinsler | Gravemind | Heretics (Sesa Refumee) |