Terrorcons
| Name | Alternate mode | First appearance | Last appearance | Voiced by |
|---|---|---|---|---|
| Rippersnapper | Land Shark | Appears in Grimlock's New Brain. First speaks in Money Is Everything. | The Rebirth (Part 3) | Jim Cummings |
| A brutish monster. | ||||
| Blot | Unspecified Blue Monster | Grimlock's New Brain | The Rebirth (Part 3) | Tony St. James |
| A brutish monster. Almost never appears in robot mode. | ||||
| Sinnertwin | Orange Orthrus-like Monster | Appears in Grimlock's New Brain. First speaks in Money Is Everything. | The Rebirth (Part 3) | Jared Barclay and David Workman |
| A brutish monster. His two heads often argue with each other. | ||||
| Cutthroat | Bird-like Monster (presumably a griffin or a harpy) | Appears in Grimlock's New Brain. First speaks in Money Is Everything. | The Rebirth (Part 3) | Tony St. James |
| Mission-focused, possibly the most intelligent Terrorcon. | ||||
| Hun-Gurrr | White Two-Headed Dragon | Grimlock's New Brain | The Rebirth (Part 3) | Marshall Efron and Stephen Keener |
| Terrorcon leader whose desire is to devour Autobots. | ||||
| Abominus | The 5 Terrorcons | Grimlock's New Brain | The Rebirth (Part 2) | Jim Gosa |
| Even more so than the other Decepticon combiners, Abominus is a being of mindless fury. He's not truly a warrior—he's an animal, the destructive rages of the Terrorcons that compose him personified. His commanders can't give him orders simplistic enough for him to understand, so they just point him in the direction of objects that need to be smashed, and turn him loose. The only thing that distinguishes him from a wild beast is the enjoyment he derives from his terrible rampages. The Terrorcons who form him are working for the Quintessons in one episode but are otherwise Decepticon agents. | ||||
Read more about this topic: Crystal Widow, Decepticons