This would be a really good moment for a spit take if there was a drink involved. Instead Rodimus nearly drops the paddle, shock plain on his face.

"Thu...Thundercracker!?"

Well, if he wanted confirmation about Cybertronians on Earth, he got it. Or he assumes so..."Thundercracker" can't be that common of name. Was Thundercracker still on Earth? That guy really needed to get his scrap together.

"I uh. Was this "Thundercracker"...was he, perhaps. Large. Maybe not so...organic. Maybe made of metal? Sometimes a...a jet?"