"This is the Nexus, and so far as I've been able to tell, absolutely no-one's in charge. At all. I'm Megatron of Tarn. I'm not from around here either. I'm not sure anyone here is from around here."

He's been wandering about like he does in the Nexus sometimes, just watching things. So he's not at his full height of ten metres; it's more like two, which if he were human, would make him very tall, but not impossibly so. The way he speaks is rather cultured, even when his language is casual.

(That said, he is still a big robot with glowing red eyes, engraved scrollwork all over his upper chest, and some kind of cannon or gun affixed to his back, and if the cartoons exist in her universe, the sight of him might be pretty hilarious.)