The Sweeps were among the new Decepticons created by Unicron, seemingly out of the remains of the Insecticons. They served Galvatron as he took back control of the Decepticons and then attempted to gain the Creation Matrix.
After the events of the movie, the Sweeps went into exile with the other Decepticons on Chaar. They tended to accompany Scourge and Cyclonus and were among those who retrieved the lost Galvatron. Despite this, they were often on the receiving end of Galvatron's temper, and sometimes also that of his lieutenants, as well as tending to take a high casualty rate during battles. In "Starscream's Ghost", Cyclonus threatened them into searching a dark cavern for the fugitive Octane, while in "The Dweller in the Deep", several of them were transformed temporarily into energy vampires when Galvatron sacrificed them to escape from the Dweller.
They last appeared in "The Return of Optimus Prime" among those infected with the Hate Plague, joining Cyclonus and Scourge in attacking Galvatron.
- They were voiced by Neil Ross, Corey Burton, Frank Welker, Ed Gilbert, Jerry Houser, Beau Weaver, Paul Eiding, Chris Latta, Aran Kincaid, Dick Gautier and Jack Angel.