Megatron was the rightful ruler of Cybertron, but for some reason the High Council denied him his proper place. With his new followers, he was on track to claim rule over all Cybertronians, but as an ultimate act of betrayal, his closest ally Optimus betrayed him and rallied his own army. He even had the audacity to claim the title of Prime. Blasphemy. Now Megatron will burn down any world Optimus decides to call home, no matter how many of his warriors fall along the way. 

The dynamic between Optimus Prime and Megatron has always been one of the most important aspects to Transformers, and for this iteration, I'm expanding on the idea of betrayal from "Transformers: Prime" and making that a focal point of Megatron's anger at Optimus. I'm open to almost any type of voice for Megatron as long as it doesn't come off as mustache-twirly. Frank Welker's TFP voice and Corey Burtron's TFA performance are good starting points, but the more unique the better.