Hetalia x Seiyuu. Characters with their Japanese Voice Actors. The voice actors are (Left to right) : Hiroki Yasumoto, Yuki Kai, Katsuyuki Konishi, Daisuke Namikawa, Hiroki Takahashi, Masaya Onosaka, Noriaki Sugiyama and Yasuhiro Takayo.
I know three of these peeps... All good anime: Natsu from Fairy Tail, Nagasumi from My Bride is a Mermaid, and Karou (one of the twins from Ouran high school host club). The thing about Todd Haberkorn is that you can tell it's his voice, but it varies so much it just works. He's also a huge nerd so that's a plus~