Mrgatron Decepticon (From ES

エリタ-ワン、最近ディセプティコンを見かけなかったか？

Megatron used to be the cruel and merciless leader of the Decepticons, who fought against Optimus Prime and his Autobots across both Cybertron and Earth.

These days, however, he’s reformed. He now works with Optimus and his Autobots, as well as G.H.O.S.T., to protect the people of Earth, human and Cybertronian alike. However, that doesn’t mean he follows Optimus blindly. Megatron cares deeply for his former troops, and does NOT appreciate G.H.O.S.T.’s treatment of them. He’s trying to make the best of a bad situation, in the name of peace, but there’s still a bit of tension between the two leaders. He has, however, forged a lasting friendship with fellow veteran Dot Malto.

As much as he has his doubts in the alliance with G.H.O.S.T., he doesn't regret turning away from what he was becoming. Though the other Decepticons call him "traitor", he's the only one who still believes in their original vision: a peaceful and plentiful future for the Cybertronian race. He sees the Terrans as the embodiment of that hop