Unicron (MTMTRE)

Unicron is the true main antagonist of the My Life With Transformers film series, appearing as the overarching antagonist of the Fallen Trilogy and the main antagonist of the Coming of Unicron quintology. He is the eternal arch-nemesis of his twin brother Primus and the master of the Fallen, formerly known as Megatronus Prime, and the Heralds of Unicron.