[quote=@tobiax]
It's not important. I mean, there's a character with the most european last name ever in Data Squad. And Matt's blond for some reason. There's wiggle room.
[/quote]

Yes how dare the HALF AUSTRIAN have you know... an AUSTRIAN sounding last name. That'd make too much sense.

And yeah Yamato and Takeru's hair color is certainly a little odd all things considered. But that's anime for ya haircolor hardly ever matters.