User blog comment:WonderfulAsia/Hetalia English Dub Cast Updates/@comment-2004850-20100713145937

I don't know who is playing him. He sounds a bit like Mignogna, though they probably wouldn't have announced Greece if he was America, too. I think they're just playing with the notion that his voice gets faster and more hyper when he's excited, while he sounds much more normal any other time. The Japanese version had this going for a bit...Then they dropped it and made his voice more annoying. Then the Roswell episode sort of brought it back to his original thing.

My favorite part about Flying Mint Bunny is that it comes out of nowhere. I mean, the creature itself we expect...Then "Flying Mint Bunny!" It has a name XD

EDIT: And, yeah, his accent is sort of there and sort of not. Hopefully he'll improve. However, I like the way it sounds and his pitch.