User blog comment:WonderfulAsia/Hetalia English Dub Cast Updates/@comment-1271618-20100717003837

@Supersaiyanbatman: Now that I think about it, if you listen closely in Episode 27, Egypt does have dialogue...well, actually more like unintelligible grunts as he hits Italy. I guess the dub elaborates on the grunts to full speech or makes them louder (It's speculated Takahashi was the supplier of Egypt's grunts but it's hard to tell).

edit: Heh, it's the ADR director supplying Egypt's voice for the dub, go figure.