This article lists characters that appear in Transformers: Cybertron, the third chapter of the "Unicron Trilogy" series of the Transformers franchise. The series features the entirety of planet Cybertron's civilization evacuating the planet to Earth when it is absorbed by a black hole left via the destruction of Unicron. The Autobots act as the main protagonists of the series, with the Decepticons as the main antagonists. Various characters originate from fictional planets shown throughout the series.